Hi,
Please find the latest report on new defect(s) introduced to coreboot found
with Coverity Scan.
55 new defect(s) introduced to coreboot found with Coverity Scan.
94 defect(s), reported by Coverity Scan earlier, were marked fixed in the
recent build analyzed by Coverity Scan.
New defect(s) Reported-by: Coverity Scan
Showing 20 of 55 defect(s)
** CID 1357464: Incorrect expression (UNUSED_VALUE)
/src/soc/intel/quark/i2c.c: 71 in platform_i2c_transfer()
________________________________________________________________________________________________________
*** CID 1357464: Incorrect expression (UNUSED_VALUE)
/src/soc/intel/quark/i2c.c: 71 in platform_i2c_transfer()
65 /* Set the slave address */
66 ASSERT (count > 0);
67 ASSERT (segments != NULL);
68 ASSERT (segments->read == 0);
69
70 /* Clear the start and stop detection */
>>> CID 1357464: Incorrect expression (UNUSED_VALUE)
>>> Assigning value from "regs->ic_clr_start_det" to "status" here, but
>>> that stored value is overwritten before it can be used.
71 status = regs->ic_clr_start_det;
72 status = regs->ic_clr_stop_det;
73
74 /* Set addressing mode to 7-bit and fast mode */
75 cmd = regs->ic_con;
76 cmd &= ~(IC_CON_10B | IC_CON_SPEED);
** CID 1357463: Incorrect expression (UNUSED_VALUE)
/src/soc/intel/quark/i2c.c: 91 in platform_i2c_transfer()
________________________________________________________________________________________________________
*** CID 1357463: Incorrect expression (UNUSED_VALUE)
/src/soc/intel/quark/i2c.c: 91 in platform_i2c_transfer()
85 /* Enable the I2C controller */
86 regs->ic_enable = IC_ENABLE_CONTROLLER;
87
88 /* Clear the interrupts */
89 status = regs->ic_clr_rx_under;
90 status = regs->ic_clr_rx_over;
>>> CID 1357463: Incorrect expression (UNUSED_VALUE)
>>> Assigning value from "regs->ic_clr_tx_over" to "status" here, but that
>>> stored value is overwritten before it can be used.
91 status = regs->ic_clr_tx_over;
92 status = regs->ic_clr_tx_abrt;
93
94 /* Process each of the segments */
95 bytes_transferred = 0;
96 read_length = 0;
** CID 1357462: Incorrect expression (UNUSED_VALUE)
/src/soc/intel/quark/i2c.c: 90 in platform_i2c_transfer()
________________________________________________________________________________________________________
*** CID 1357462: Incorrect expression (UNUSED_VALUE)
/src/soc/intel/quark/i2c.c: 90 in platform_i2c_transfer()
84
85 /* Enable the I2C controller */
86 regs->ic_enable = IC_ENABLE_CONTROLLER;
87
88 /* Clear the interrupts */
89 status = regs->ic_clr_rx_under;
>>> CID 1357462: Incorrect expression (UNUSED_VALUE)
>>> Assigning value from "regs->ic_clr_rx_over" to "status" here, but that
>>> stored value is overwritten before it can be used.
90 status = regs->ic_clr_rx_over;
91 status = regs->ic_clr_tx_over;
92 status = regs->ic_clr_tx_abrt;
93
94 /* Process each of the segments */
95 bytes_transferred = 0;
** CID 1357461: Incorrect expression (UNUSED_VALUE)
/src/soc/intel/quark/i2c.c: 89 in platform_i2c_transfer()
________________________________________________________________________________________________________
*** CID 1357461: Incorrect expression (UNUSED_VALUE)
/src/soc/intel/quark/i2c.c: 89 in platform_i2c_transfer()
83 regs->ic_tar = chip;
84
85 /* Enable the I2C controller */
86 regs->ic_enable = IC_ENABLE_CONTROLLER;
87
88 /* Clear the interrupts */
>>> CID 1357461: Incorrect expression (UNUSED_VALUE)
>>> Assigning value from "regs->ic_clr_rx_under" to "status" here, but that
>>> stored value is overwritten before it can be used.
89 status = regs->ic_clr_rx_under;
90 status = regs->ic_clr_rx_over;
91 status = regs->ic_clr_tx_over;
92 status = regs->ic_clr_tx_abrt;
93
94 /* Process each of the segments */
** CID 1357460: Code maintainability issues (UNUSED_VALUE)
/src/soc/intel/quark/reg_access.c: 230 in reg_read()
________________________________________________________________________________________________________
*** CID 1357460: Code maintainability issues (UNUSED_VALUE)
/src/soc/intel/quark/reg_access.c: 230 in reg_read()
224 ctx->display_prefix = "GPIO";
225 value = reg_gpio_read(step->reg);
226 break;
227
228 case LEG_GPIO_REGS:
229 ctx->display_prefix = "Legacy GPIO";
>>> CID 1357460: Code maintainability issues (UNUSED_VALUE)
>>> Assigning value from "reg_legacy_gpio_read(step->reg)" to "value" here,
>>> but that stored value is overwritten before it can be used.
230 value = reg_legacy_gpio_read(step->reg);
231
232 case PCIE_AFE_REGS:
233 ctx->display_prefix = "PCIe AFE";
234 value = reg_pcie_afe_read(step->reg);
235 break;
** CID 1357459: Uninitialized variables (UNINIT)
/src/mainboard/google/gru/mainboard.c: 173 in setup_rtc()
________________________________________________________________________________________________________
*** CID 1357459: Uninitialized variables (UNINIT)
/src/mainboard/google/gru/mainboard.c: 173 in setup_rtc()
167 setup_usb_drd0_dwc3();
168 setup_usb_drd1_dwc3();
169 }
170
171 static void setup_rtc(void)
172 {
>>> CID 1357459: Uninitialized variables (UNINIT)
>>> Declaring variable "time" without initializer.
173 struct rtc_time time;
174 int ret;
175
176 /* Show the current time to see that the EC RTC is working */
177 google_chromeec_init();
178 ret = rtc_get(&time);
** CID 1357458: Insecure data handling (TAINTED_SCALAR)
/payloads/libpayload/libcbfs/cbfs_core.c: 255 in cbfs_get_contents()
________________________________________________________________________________________________________
*** CID 1357458: Insecure data handling (TAINTED_SCALAR)
/payloads/libpayload/libcbfs/cbfs_core.c: 255 in cbfs_get_contents()
249
250 void *data = m->map(m, handle->media_offset +
handle->content_offset,
251 on_media_size);
252 if (data == CBFS_MEDIA_INVALID_MAP_ADDRESS)
253 return NULL;
254
>>> CID 1357458: Insecure data handling (TAINTED_SCALAR)
>>> Passing tainted variable "*size" to a tainted sink. [Note: The source
>>> code implementation of the function has been overridden by a builtin model.]
255 ret = malloc(*size);
256 if (ret != NULL && !cbfs_decompress(algo, data, ret, *size)) {
257 free(ret);
258 ret = NULL;
259 }
260
** CID 1357457: Resource leaks (RESOURCE_LEAK)
/src/arch/x86/acpi_device.c: 737 in acpi_dp_add_integer_array()
________________________________________________________________________________________________________
*** CID 1357457: Resource leaks (RESOURCE_LEAK)
/src/arch/x86/acpi_device.c: 737 in acpi_dp_add_integer_array()
731 return NULL;
732
733 for (i = 0; i < len; i++)
734 if (!acpi_dp_add_integer(dp_array, NULL, array[i]))
735 break;
736
>>> CID 1357457: Resource leaks (RESOURCE_LEAK)
>>> Ignoring storage allocated by "acpi_dp_add_array(dp, dp_array)" leaks
>>> it.
737 acpi_dp_add_array(dp, dp_array);
738
739 return dp_array;
740 }
741
742 struct acpi_dp *acpi_dp_add_gpio(struct acpi_dp *dp, const char *name,
** CID 1357456: Resource leaks (RESOURCE_LEAK)
/src/arch/x86/acpi_device.c: 763 in acpi_dp_add_gpio()
________________________________________________________________________________________________________
*** CID 1357456: Resource leaks (RESOURCE_LEAK)
/src/arch/x86/acpi_device.c: 763 in acpi_dp_add_gpio()
757 /* Pin in the GPIO resource, typically zero */
758 acpi_dp_add_integer(gpio, NULL, pin);
759
760 /* Set if pin is active low */
761 acpi_dp_add_integer(gpio, NULL, active_low);
762
>>> CID 1357456: Resource leaks (RESOURCE_LEAK)
>>> Ignoring storage allocated by "acpi_dp_add_array(dp, gpio)" leaks it.
763 acpi_dp_add_array(dp, gpio);
764
765 return gpio;
** CID 1357455: (RESOURCE_LEAK)
/payloads/libpayload/libcbfs/cbfs_core.c: 218 in cbfs_get_handle()
/payloads/libpayload/libcbfs/cbfs_core.c: 151 in cbfs_get_handle()
/payloads/libpayload/libcbfs/cbfs_core.c: 158 in cbfs_get_handle()
________________________________________________________________________________________________________
*** CID 1357455: (RESOURCE_LEAK)
/payloads/libpayload/libcbfs/cbfs_core.c: 218 in cbfs_get_handle()
212 offset += ntohl(file.len) + ntohl(file.offset);
213 if (offset % CBFS_ALIGNMENT)
214 offset += CBFS_ALIGNMENT - (offset %
CBFS_ALIGNMENT);
215 }
216 media->close(media);
217 LOG("WARNING: '%s' not found.\n", name);
>>> CID 1357455: (RESOURCE_LEAK)
>>> Variable "handle" going out of scope leaks the storage it points to.
218 return NULL;
219 }
220
221 void *cbfs_get_contents(struct cbfs_handle *handle, size_t *size,
size_t limit)
222 {
223 struct cbfs_media *m = &handle->media;
/payloads/libpayload/libcbfs/cbfs_core.c: 151 in cbfs_get_handle()
145
146 if (!handle)
147 return NULL;
148
149 if (get_cbfs_range(&offset, &cbfs_end, media)) {
150 ERROR("Failed to find cbfs range\n");
>>> CID 1357455: (RESOURCE_LEAK)
>>> Variable "handle" going out of scope leaks the storage it points to.
151 return NULL;
152 }
153
154 if (media == CBFS_DEFAULT_MEDIA) {
155 media = &handle->media;
156 if (init_default_cbfs_media(media) != 0) {
/payloads/libpayload/libcbfs/cbfs_core.c: 158 in cbfs_get_handle()
152 }
153
154 if (media == CBFS_DEFAULT_MEDIA) {
155 media = &handle->media;
156 if (init_default_cbfs_media(media) != 0) {
157 ERROR("Failed to initialize default media.\n");
>>> CID 1357455: (RESOURCE_LEAK)
>>> Returning without freeing "media" leaks the storage that it points to.
158 return NULL;
159 }
160 } else {
161 memcpy(&handle->media, media, sizeof(*media));
162 }
163
** CID 1357454: Memory - illegal accesses (OVERRUN)
/src/vendorcode/amd/agesa/f12/Proc/Mem/NB/LN/mnln.c: 255 in
MemConstructNBBlockLN()
________________________________________________________________________________________________________
*** CID 1357454: Memory - illegal accesses (OVERRUN)
/src/vendorcode/amd/agesa/f12/Proc/Mem/NB/LN/mnln.c: 255 in
MemConstructNBBlockLN()
249 NBPtr->BeforeDqsTraining = MemNBeforeDQSTrainingLN;
250 NBPtr->AfterDqsTraining = MemNAfterDQSTrainingLN;
251 NBPtr->OtherTiming = MemNOtherTimingLN;
252 NBPtr->GetSocketRelativeChannel = MemNGetSocketRelativeChannelNb;
253 NBPtr->TechBlockSwitch = MemNTechBlockSwitchLN;
254 NBPtr->SetEccSymbolSize = (VOID (*) (MEM_NB_BLOCK *)) memDefRet;
>>> CID 1357454: Memory - illegal accesses (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
255 NBPtr->TrainingFlow = (VOID (*) (MEM_NB_BLOCK
*))(memNTrainFlowControl[DDR3_TRAIN_FLOW]);
256 NBPtr->MinDataEyeWidth = MemNMinDataEyeWidthNb;
257 NBPtr->ChangeNbFrequencyWrap = MemNChangeNbFrequencyWrapLN;
258 NBPtr->AllocateC6Storage = MemNAllocateC6StorageClientNb;
259
260 MemNInitNBDataNb (NBPtr);
** CID 1357453: Memory - illegal accesses (OVERRUN)
/src/vendorcode/amd/agesa/f14/Proc/Mem/NB/ON/mnon.c: 254 in
MemConstructNBBlockON()
________________________________________________________________________________________________________
*** CID 1357453: Memory - illegal accesses (OVERRUN)
/src/vendorcode/amd/agesa/f14/Proc/Mem/NB/ON/mnon.c: 254 in
MemConstructNBBlockON()
248 NBPtr->BeforeDqsTraining = MemNBeforeDQSTrainingON;
249 NBPtr->AfterDqsTraining = MemNAfterDQSTrainingON;
250 NBPtr->OtherTiming = MemNOtherTimingON;
251 NBPtr->GetSocketRelativeChannel = MemNGetSocketRelativeChannelNb;
252 NBPtr->TechBlockSwitch = MemNTechBlockSwitchON;
253 NBPtr->SetEccSymbolSize = (VOID (*) (MEM_NB_BLOCK *)) memDefRet;
>>> CID 1357453: Memory - illegal accesses (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
254 NBPtr->TrainingFlow = (VOID (*) (MEM_NB_BLOCK *))
memNTrainFlowControl[DDR3_TRAIN_FLOW];
255 NBPtr->MinDataEyeWidth = MemNMinDataEyeWidthNb;
256 NBPtr->PollBitField = MemNPollBitFieldNb;
257 NBPtr->BrdcstCheck = MemNBrdcstCheckON;
258 NBPtr->BrdcstSet = MemNSetBitFieldNb;
259 NBPtr->GetTrainDly = MemNGetTrainDlyNb;
** CID 1357452: (OVERRUN)
/src/vendorcode/amd/agesa/f15/Proc/Mem/NB/mn.c: 502 in MemNTrainingFlowUnb()
/src/vendorcode/amd/agesa/f14/Proc/Mem/NB/mn.c: 499 in MemNTrainingFlowUnb()
/src/vendorcode/amd/agesa/f16kb/Proc/Mem/NB/mn.c: 579 in MemNTrainingFlowUnb()
/src/vendorcode/amd/agesa/f12/Proc/Mem/NB/mn.c: 497 in MemNTrainingFlowUnb()
/src/vendorcode/amd/agesa/f15tn/Proc/Mem/NB/mn.c: 495 in MemNTrainingFlowUnb()
________________________________________________________________________________________________________
*** CID 1357452: (OVERRUN)
/src/vendorcode/amd/agesa/f15/Proc/Mem/NB/mn.c: 502 in MemNTrainingFlowUnb()
496 */
497 BOOLEAN
498 MemNTrainingFlowUnb (
499 IN OUT MEM_NB_BLOCK *NBPtr
500 )
501 {
>>> CID 1357452: (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
502 memNTrainFlowControl[DDR3_TRAIN_FLOW] (NBPtr);
503 return TRUE;
504 }
505
/*----------------------------------------------------------------------------
506 * LOCAL FUNCTIONS
507 *
/src/vendorcode/amd/agesa/f14/Proc/Mem/NB/mn.c: 499 in MemNTrainingFlowUnb()
493 */
494 BOOLEAN
495 MemNTrainingFlowUnb (
496 IN OUT MEM_NB_BLOCK *NBPtr
497 )
498 {
>>> CID 1357452: (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
499 memNTrainFlowControl[DDR3_TRAIN_FLOW] (NBPtr);
500 return TRUE;
501 }
502
/*----------------------------------------------------------------------------
503 * LOCAL FUNCTIONS
504 *
/src/vendorcode/amd/agesa/f16kb/Proc/Mem/NB/mn.c: 579 in MemNTrainingFlowUnb()
573 */
574 BOOLEAN
575 MemNTrainingFlowUnb (
576 IN OUT MEM_NB_BLOCK *NBPtr
577 )
578 {
>>> CID 1357452: (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
579 memNTrainFlowControl[DDR3_TRAIN_FLOW] (NBPtr);
580 return TRUE;
581 }
582
583 /*
-----------------------------------------------------------------------------*/
584 /**
/src/vendorcode/amd/agesa/f12/Proc/Mem/NB/mn.c: 497 in MemNTrainingFlowUnb()
491 */
492 BOOLEAN
493 MemNTrainingFlowUnb (
494 IN OUT MEM_NB_BLOCK *NBPtr
495 )
496 {
>>> CID 1357452: (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
497 memNTrainFlowControl[DDR3_TRAIN_FLOW] (NBPtr);
498 return TRUE;
499 }
500
/*----------------------------------------------------------------------------
501 * LOCAL FUNCTIONS
502 *
/src/vendorcode/amd/agesa/f15tn/Proc/Mem/NB/mn.c: 495 in MemNTrainingFlowUnb()
489 */
490 VOID
491 MemNTrainingFlowUnb (
492 IN OUT MEM_NB_BLOCK *NBPtr
493 )
494 {
>>> CID 1357452: (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
495 memNTrainFlowControl[DDR3_TRAIN_FLOW] (NBPtr);
496 return;
497 }
498
/*----------------------------------------------------------------------------
499 * LOCAL FUNCTIONS
500 *
501
*----------------------------------------------------------------------------
** CID 1357451: (OVERRUN)
/src/vendorcode/amd/agesa/f15/Proc/Mem/NB/mn.c: 309 in MemNTrainingFlowNb()
/src/vendorcode/amd/agesa/f14/Proc/Mem/NB/mn.c: 306 in MemNTrainingFlowNb()
/src/vendorcode/amd/agesa/f12/Proc/Mem/NB/mn.c: 304 in MemNTrainingFlowNb()
/src/vendorcode/amd/agesa/f15tn/Proc/Mem/NB/mn.c: 302 in MemNTrainingFlowNb()
________________________________________________________________________________________________________
*** CID 1357451: (OVERRUN)
/src/vendorcode/amd/agesa/f15/Proc/Mem/NB/mn.c: 309 in MemNTrainingFlowNb()
303 BOOLEAN
304 MemNTrainingFlowNb (
305 IN OUT MEM_NB_BLOCK *NBPtr
306 )
307 {
308 if (MemNGetBitFieldNb (NBPtr, BFDdr3Mode)!= 0) {
>>> CID 1357451: (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
309 memNTrainFlowControl[DDR3_TRAIN_FLOW] (NBPtr);
310 } else {
311 memNTrainFlowControl[DDR2_TRAIN_FLOW] (NBPtr);
312 }
313 return TRUE;
314 }
/src/vendorcode/amd/agesa/f14/Proc/Mem/NB/mn.c: 306 in MemNTrainingFlowNb()
300 BOOLEAN
301 MemNTrainingFlowNb (
302 IN OUT MEM_NB_BLOCK *NBPtr
303 )
304 {
305 if (MemNGetBitFieldNb (NBPtr, BFDdr3Mode)!= 0) {
>>> CID 1357451: (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
306 memNTrainFlowControl[DDR3_TRAIN_FLOW] (NBPtr);
307 } else {
308 memNTrainFlowControl[DDR2_TRAIN_FLOW] (NBPtr);
309 }
310 return TRUE;
311 }
/src/vendorcode/amd/agesa/f12/Proc/Mem/NB/mn.c: 304 in MemNTrainingFlowNb()
298 BOOLEAN
299 MemNTrainingFlowNb (
300 IN OUT MEM_NB_BLOCK *NBPtr
301 )
302 {
303 if (MemNGetBitFieldNb (NBPtr, BFDdr3Mode)!= 0) {
>>> CID 1357451: (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
304 memNTrainFlowControl[DDR3_TRAIN_FLOW] (NBPtr);
305 } else {
306 memNTrainFlowControl[DDR2_TRAIN_FLOW] (NBPtr);
307 }
308 return TRUE;
309 }
/src/vendorcode/amd/agesa/f15tn/Proc/Mem/NB/mn.c: 302 in MemNTrainingFlowNb()
296 BOOLEAN
297 MemNTrainingFlowNb (
298 IN OUT MEM_NB_BLOCK *NBPtr
299 )
300 {
301 if (MemNGetBitFieldNb (NBPtr, BFDdr3Mode)!= 0) {
>>> CID 1357451: (OVERRUN)
>>> Overrunning array "memNTrainFlowControl" of 1 4-byte elements at
>>> element index 1 (byte offset 4) using index "1".
302 memNTrainFlowControl[DDR3_TRAIN_FLOW] (NBPtr);
303 } else {
304 memNTrainFlowControl[DDR2_TRAIN_FLOW] (NBPtr);
305 }
306 return TRUE;
307 }
** CID 1357450: (NO_EFFECT)
/src/soc/intel/skylake/romstage/i2c.c: 59 in i2c_early_init_bus()
/src/soc/intel/apollolake/i2c_early.c: 42 in i2c_early_init_bus()
________________________________________________________________________________________________________
*** CID 1357450: (NO_EFFECT)
/src/soc/intel/skylake/romstage/i2c.c: 59 in i2c_early_init_bus()
53 uintptr_t base;
54 uint32_t value;
55 void *reg;
56
57 /* Find the PCI device for this bus controller */
58 devfn = i2c_bus_to_devfn(bus);
>>> CID 1357450: (NO_EFFECT)
>>> This less-than-zero comparison of an unsigned value is never true.
>>> "devfn < 0U".
59 if (devfn < 0)
60 return;
61
62 /* Look up the controller device in the devicetree */
63 dev = PCI_DEV(0, PCI_SLOT(devfn), PCI_FUNC(devfn));
64 tree_dev = dev_find_slot(0, devfn);
/src/soc/intel/apollolake/i2c_early.c: 42 in i2c_early_init_bus()
36 uintptr_t base;
37 uint32_t value;
38 void *reg;
39
40 /* Find the PCI device for this bus controller */
41 devfn = i2c_bus_to_devfn(bus);
>>> CID 1357450: (NO_EFFECT)
>>> This less-than-zero comparison of an unsigned value is never true.
>>> "devfn < 0U".
42 if (devfn < 0) {
43 printk(BIOS_ERR, "I2C%u device not found\n", bus);
44 return -1;
45 }
46
47 /* Look up the controller device in the devicetree */
** CID 1357449: (NO_EFFECT)
/src/soc/intel/apollolake/i2c.c: 37 in lpss_i2c_base_address()
/src/soc/intel/skylake/i2c.c: 33 in lpss_i2c_base_address()
/src/soc/intel/skylake/romstage/i2c.c: 35 in lpss_i2c_base_address()
/src/soc/intel/apollolake/i2c_early.c: 101 in lpss_i2c_base_address()
________________________________________________________________________________________________________
*** CID 1357449: (NO_EFFECT)
/src/soc/intel/apollolake/i2c.c: 37 in lpss_i2c_base_address()
31 unsigned devfn;
32 struct device *dev;
33 struct resource *res;
34
35 /* bus -> devfn */
36 devfn = i2c_bus_to_devfn(bus);
>>> CID 1357449: (NO_EFFECT)
>>> This greater-than-or-equal-to-zero comparison of an unsigned value is
>>> always true. "devfn >= 0U".
37 if (devfn >= 0) {
38 /* devfn -> dev */
39 dev = dev_find_slot(0, devfn);
40 if (dev) {
41 /* dev -> bar0 */
42 res = find_resource(dev, PCI_BASE_ADDRESS_0);
/src/soc/intel/skylake/i2c.c: 33 in lpss_i2c_base_address()
27 unsigned devfn;
28 struct device *dev;
29 struct resource *res;
30
31 /* bus -> devfn */
32 devfn = i2c_bus_to_devfn(bus);
>>> CID 1357449: (NO_EFFECT)
>>> This greater-than-or-equal-to-zero comparison of an unsigned value is
>>> always true. "devfn >= 0U".
33 if (devfn >= 0) {
34 /* devfn -> dev */
35 dev = dev_find_slot(0, devfn);
36 if (dev) {
37 /* dev -> bar0 */
38 res = find_resource(dev, PCI_BASE_ADDRESS_0);
/src/soc/intel/skylake/romstage/i2c.c: 35 in lpss_i2c_base_address()
29 {
30 unsigned devfn;
31 pci_devfn_t dev;
32
33 /* Find device+function for this controller */
34 devfn = i2c_bus_to_devfn(bus);
>>> CID 1357449: (NO_EFFECT)
>>> This less-than-zero comparison of an unsigned value is never true.
>>> "devfn < 0U".
35 if (devfn < 0)
36 return 0;
37
38 /* Form a PCI address for this device */
39 dev = PCI_DEV(0, PCI_SLOT(devfn), PCI_FUNC(devfn));
40
/src/soc/intel/apollolake/i2c_early.c: 101 in lpss_i2c_base_address()
95 unsigned devfn;
96 pci_devfn_t dev;
97 uintptr_t base;
98
99 /* Find device+function for this controller */
100 devfn = i2c_bus_to_devfn(bus);
>>> CID 1357449: (NO_EFFECT)
>>> This less-than-zero comparison of an unsigned value is never true.
>>> "devfn < 0U".
101 if (devfn < 0)
102 return (uintptr_t)NULL;
103
104 /* Form a PCI address for this device */
105 dev = PCI_DEV(0, PCI_SLOT(devfn), PCI_FUNC(devfn));
106
** CID 1357448: Control flow issues (NO_EFFECT)
/src/soc/intel/apollolake/include/soc/i2c.h: 31 in i2c_bus_to_devfn()
________________________________________________________________________________________________________
*** CID 1357448: Control flow issues (NO_EFFECT)
/src/soc/intel/apollolake/include/soc/i2c.h: 31 in i2c_bus_to_devfn()
25 #define I2C_LPSS_RESET_RELEASE_HC ((1 << 1) | (1 << 0))
26 #define I2C_LPSS_RESET_RELEASE_IDMA (1 << 2)
27
28 /* Convert I2C bus number to PCI device and function */
29 static inline int i2c_bus_to_devfn(unsigned bus)
30 {
>>> CID 1357448: Control flow issues (NO_EFFECT)
>>> This greater-than-or-equal-to-zero comparison of an unsigned value is
>>> always true. "bus >= 0U".
31 if (bus >= 0 && bus <= 3)
32 return PCI_DEVFN(LPSS_DEV_SLOT_I2C_D0, bus);
33 else if (bus >= 4 && bus <= 7)
34 return PCI_DEVFN(LPSS_DEV_SLOT_I2C_D1, (bus - 4));
35 else
36 return -1;
** CID 1357447: Control flow issues (MISSING_BREAK)
/src/soc/intel/quark/reg_access.c: 232 in reg_read()
________________________________________________________________________________________________________
*** CID 1357447: Control flow issues (MISSING_BREAK)
/src/soc/intel/quark/reg_access.c: 232 in reg_read()
226 break;
227
228 case LEG_GPIO_REGS:
229 ctx->display_prefix = "Legacy GPIO";
230 value = reg_legacy_gpio_read(step->reg);
231
>>> CID 1357447: Control flow issues (MISSING_BREAK)
>>> The above case falls through to this one.
232 case PCIE_AFE_REGS:
233 ctx->display_prefix = "PCIe AFE";
234 value = reg_pcie_afe_read(step->reg);
235 break;
236
237 case RMU_TEMP_REGS:
** CID 1357446: Control flow issues (DEADCODE)
/src/northbridge/intel/x4x/raminit.c: 424 in sdram_detect_ram_speed()
________________________________________________________________________________________________________
*** CID 1357446: Control flow issues (DEADCODE)
/src/northbridge/intel/x4x/raminit.c: 424 in sdram_detect_ram_speed()
418 } else { // DDR3
419 // Limit frequency for MCH
420 maxfreq = (s->max_ddr2_mhz == 800) ? MEM_CLOCK_800MHz :
MEM_CLOCK_667MHz;
421 maxfreq >>= 3;
422 freq = MEM_CLOCK_1333MHz;
423 if (maxfreq) {
>>> CID 1357446: Control flow issues (DEADCODE)
>>> Execution cannot reach this statement: "freq = maxfreq + 2;".
424 freq = maxfreq + 2;
425 }
426 if (freq > MEM_CLOCK_1333MHz) {
427 freq = MEM_CLOCK_1333MHz;
428 }
429
** CID 1357445: Control flow issues (DEADCODE)
/src/soc/rockchip/rk3399/display.c: 108 in rk_display_init()
________________________________________________________________________________________________________
*** CID 1357445: Control flow issues (DEADCODE)
/src/soc/rockchip/rk3399/display.c: 108 in rk_display_init()
102 edid.y_resolution = edid.mode.va;
103 rkvop_mode_set(conf->vop_id, &edid, detected_mode);
104
105 rkvop_enable(conf->vop_id, lcdbase, &edid);
106
107 switch (detected_mode) {
>>> CID 1357445: Control flow issues (DEADCODE)
>>> Execution cannot reach this statement: "case VOP_MODE_HDMI:".
108 case VOP_MODE_HDMI:
109 /* should not be here before HDMI supported */
110 return;
111 case VOP_MODE_EDP:
112 default:
113 if (rk_edp_enable()) {
________________________________________________________________________________________________________
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