The seq_printf return value, because it's frequently misused,
will eventually be converted to void.
See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to
seq_has_overflowed() and make public")
Signed-off-by: Joe Perches <j...@perches.com>
---
drivers/mfd/ab8500-debugfs.c | 196 ++++++++++++++++++++++++++-----------------
1 file changed, 121 insertions(+), 75 deletions(-)
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index 9a8e185..cdd6f3d 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -1283,7 +1283,7 @@ static irqreturn_t ab8500_debug_handler(int irq, void
*data)
/* Prints to seq_file or log_buf */
static int ab8500_registers_print(struct device *dev, u32 bank,
- struct seq_file *s)
+ struct seq_file *s)
{
unsigned int i;
@@ -1304,20 +1304,19 @@ static int ab8500_registers_print(struct device *dev,
u32 bank,
}
if (s) {
- err = seq_printf(s,
- " [0x%02X/0x%02X]: 0x%02X\n",
- bank, reg, value);
- if (err < 0) {
- /* Error is not returned here since
- * the output is wanted in any case */
+ seq_printf(s, " [0x%02X/0x%02X]: 0x%02X\n",
+ bank, reg, value);
+ /* Error is not returned here since
+ * the output is wanted in any case */
+ if (seq_has_overflowed(s))
return 0;
- }
} else {
dev_info(dev, " [0x%02X/0x%02X]: 0x%02X\n",
bank, reg, value);
}
}
}
+
return 0;
}
@@ -1330,8 +1329,7 @@ static int ab8500_print_bank_registers(struct seq_file
*s, void *p)
seq_printf(s, " bank 0x%02X:\n", bank);
- ab8500_registers_print(dev, bank, s);
- return 0;
+ return ab8500_registers_print(dev, bank, s);
}
static int ab8500_registers_open(struct inode *inode, struct file *file)
@@ -1355,9 +1353,12 @@ static int ab8500_print_all_banks(struct seq_file *s,
void *p)
seq_puts(s, AB8500_NAME_STRING " register values:\n");
for (i = 0; i < AB8500_NUM_BANKS; i++) {
- seq_printf(s, " bank 0x%02X:\n", i);
+ int err;
- ab8500_registers_print(dev, i, s);
+ seq_printf(s, " bank 0x%02X:\n", i);
+ err = ab8500_registers_print(dev, i, s);
+ if (err)
+ return err;
}
return 0;
}
@@ -1458,7 +1459,8 @@ static const struct file_operations ab8500_all_banks_fops
= {
static int ab8500_bank_print(struct seq_file *s, void *p)
{
- return seq_printf(s, "0x%02X\n", debug_bank);
+ seq_printf(s, "0x%02X\n", debug_bank);
+ return 0;
}
static int ab8500_bank_open(struct inode *inode, struct file *file)
@@ -1490,7 +1492,8 @@ static ssize_t ab8500_bank_write(struct file *file,
static int ab8500_address_print(struct seq_file *s, void *p)
{
- return seq_printf(s, "0x%02X\n", debug_address);
+ seq_printf(s, "0x%02X\n", debug_address);
+ return 0;
}
static int ab8500_address_open(struct inode *inode, struct file *file)
@@ -1598,7 +1601,8 @@ static int ab8500_interrupts_print(struct seq_file *s,
void *p)
for (line = 0; line < num_interrupt_lines; line++) {
struct irq_desc *desc = irq_to_desc(line + irq_first);
- seq_printf(s, "%3i: %6i %4i", line,
+ seq_printf(s, "%3i: %6i %4i",
+ line,
num_interrupts[line],
num_wake_interrupts[line]);
@@ -1705,8 +1709,7 @@ static int ab8500_print_modem_registers(struct seq_file
*s, void *p)
dev_err(dev, "ab->read fail %d\n", err);
return err;
}
- err = seq_printf(s, " [0x%02X/0x%02X]: 0x%02X\n",
- bank, reg, value);
+ seq_printf(s, " [0x%02X/0x%02X]: 0x%02X\n", bank, reg, value);
}
err = abx500_set_register_interruptible(dev,
AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG, orig_value);
@@ -1743,8 +1746,9 @@ static int ab8500_gpadc_bat_ctrl_print(struct seq_file
*s, void *p)
bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc,
BAT_CTRL, bat_ctrl_raw);
- return seq_printf(s, "%d,0x%X\n",
- bat_ctrl_convert, bat_ctrl_raw);
+ seq_printf(s, "%d,0x%X\n", bat_ctrl_convert, bat_ctrl_raw);
+
+ return 0;
}
static int ab8500_gpadc_bat_ctrl_open(struct inode *inode, struct file *file)
@@ -1773,8 +1777,9 @@ static int ab8500_gpadc_btemp_ball_print(struct seq_file
*s, void *p)
btemp_ball_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL,
btemp_ball_raw);
- return seq_printf(s,
- "%d,0x%X\n", btemp_ball_convert, btemp_ball_raw);
+ seq_printf(s, "%d,0x%X\n", btemp_ball_convert, btemp_ball_raw);
+
+ return 0;
}
static int ab8500_gpadc_btemp_ball_open(struct inode *inode,
@@ -1804,8 +1809,9 @@ static int ab8500_gpadc_main_charger_v_print(struct
seq_file *s, void *p)
main_charger_v_convert = ab8500_gpadc_ad_to_voltage(gpadc,
MAIN_CHARGER_V, main_charger_v_raw);
- return seq_printf(s, "%d,0x%X\n",
- main_charger_v_convert, main_charger_v_raw);
+ seq_printf(s, "%d,0x%X\n", main_charger_v_convert, main_charger_v_raw);
+
+ return 0;
}
static int ab8500_gpadc_main_charger_v_open(struct inode *inode,
@@ -1835,8 +1841,9 @@ static int ab8500_gpadc_acc_detect1_print(struct seq_file
*s, void *p)
acc_detect1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ACC_DETECT1,
acc_detect1_raw);
- return seq_printf(s, "%d,0x%X\n",
- acc_detect1_convert, acc_detect1_raw);
+ seq_printf(s, "%d,0x%X\n", acc_detect1_convert, acc_detect1_raw);
+
+ return 0;
}
static int ab8500_gpadc_acc_detect1_open(struct inode *inode,
@@ -1866,8 +1873,9 @@ static int ab8500_gpadc_acc_detect2_print(struct seq_file
*s, void *p)
acc_detect2_convert = ab8500_gpadc_ad_to_voltage(gpadc,
ACC_DETECT2, acc_detect2_raw);
- return seq_printf(s, "%d,0x%X\n",
- acc_detect2_convert, acc_detect2_raw);
+ seq_printf(s, "%d,0x%X\n", acc_detect2_convert, acc_detect2_raw);
+
+ return 0;
}
static int ab8500_gpadc_acc_detect2_open(struct inode *inode,
@@ -1897,8 +1905,9 @@ static int ab8500_gpadc_aux1_print(struct seq_file *s,
void *p)
aux1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX1,
aux1_raw);
- return seq_printf(s, "%d,0x%X\n",
- aux1_convert, aux1_raw);
+ seq_printf(s, "%d,0x%X\n", aux1_convert, aux1_raw);
+
+ return 0;
}
static int ab8500_gpadc_aux1_open(struct inode *inode, struct file *file)
@@ -1926,8 +1935,9 @@ static int ab8500_gpadc_aux2_print(struct seq_file *s,
void *p)
aux2_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX2,
aux2_raw);
- return seq_printf(s, "%d,0x%X\n",
- aux2_convert, aux2_raw);
+ seq_printf(s, "%d,0x%X\n", aux2_convert, aux2_raw);
+
+ return 0;
}
static int ab8500_gpadc_aux2_open(struct inode *inode, struct file *file)
@@ -1955,8 +1965,9 @@ static int ab8500_gpadc_main_bat_v_print(struct seq_file
*s, void *p)
main_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V,
main_bat_v_raw);
- return seq_printf(s, "%d,0x%X\n",
- main_bat_v_convert, main_bat_v_raw);
+ seq_printf(s, "%d,0x%X\n", main_bat_v_convert, main_bat_v_raw);
+
+ return 0;
}
static int ab8500_gpadc_main_bat_v_open(struct inode *inode,
@@ -1986,8 +1997,9 @@ static int ab8500_gpadc_vbus_v_print(struct seq_file *s,
void *p)
vbus_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBUS_V,
vbus_v_raw);
- return seq_printf(s, "%d,0x%X\n",
- vbus_v_convert, vbus_v_raw);
+ seq_printf(s, "%d,0x%X\n", vbus_v_convert, vbus_v_raw);
+
+ return 0;
}
static int ab8500_gpadc_vbus_v_open(struct inode *inode, struct file *file)
@@ -2015,8 +2027,9 @@ static int ab8500_gpadc_main_charger_c_print(struct
seq_file *s, void *p)
main_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc,
MAIN_CHARGER_C, main_charger_c_raw);
- return seq_printf(s, "%d,0x%X\n",
- main_charger_c_convert, main_charger_c_raw);
+ seq_printf(s, "%d,0x%X\n", main_charger_c_convert, main_charger_c_raw);
+
+ return 0;
}
static int ab8500_gpadc_main_charger_c_open(struct inode *inode,
@@ -2046,8 +2059,9 @@ static int ab8500_gpadc_usb_charger_c_print(struct
seq_file *s, void *p)
usb_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc,
USB_CHARGER_C, usb_charger_c_raw);
- return seq_printf(s, "%d,0x%X\n",
- usb_charger_c_convert, usb_charger_c_raw);
+ seq_printf(s, "%d,0x%X\n", usb_charger_c_convert, usb_charger_c_raw);
+
+ return 0;
}
static int ab8500_gpadc_usb_charger_c_open(struct inode *inode,
@@ -2077,8 +2091,9 @@ static int ab8500_gpadc_bk_bat_v_print(struct seq_file
*s, void *p)
bk_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc,
BK_BAT_V, bk_bat_v_raw);
- return seq_printf(s, "%d,0x%X\n",
- bk_bat_v_convert, bk_bat_v_raw);
+ seq_printf(s, "%d,0x%X\n", bk_bat_v_convert, bk_bat_v_raw);
+
+ return 0;
}
static int ab8500_gpadc_bk_bat_v_open(struct inode *inode, struct file *file)
@@ -2107,8 +2122,9 @@ static int ab8500_gpadc_die_temp_print(struct seq_file
*s, void *p)
die_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, DIE_TEMP,
die_temp_raw);
- return seq_printf(s, "%d,0x%X\n",
- die_temp_convert, die_temp_raw);
+ seq_printf(s, "%d,0x%X\n", die_temp_convert, die_temp_raw);
+
+ return 0;
}
static int ab8500_gpadc_die_temp_open(struct inode *inode, struct file *file)
@@ -2137,8 +2153,9 @@ static int ab8500_gpadc_usb_id_print(struct seq_file *s,
void *p)
usb_id_convert = ab8500_gpadc_ad_to_voltage(gpadc, USB_ID,
usb_id_raw);
- return seq_printf(s, "%d,0x%X\n",
- usb_id_convert, usb_id_raw);
+ seq_printf(s, "%d,0x%X\n", usb_id_convert, usb_id_raw);
+
+ return 0;
}
static int ab8500_gpadc_usb_id_open(struct inode *inode, struct file *file)
@@ -2166,8 +2183,9 @@ static int ab8540_gpadc_xtal_temp_print(struct seq_file
*s, void *p)
xtal_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, XTAL_TEMP,
xtal_temp_raw);
- return seq_printf(s, "%d,0x%X\n",
- xtal_temp_convert, xtal_temp_raw);
+ seq_printf(s, "%d,0x%X\n", xtal_temp_convert, xtal_temp_raw);
+
+ return 0;
}
static int ab8540_gpadc_xtal_temp_open(struct inode *inode, struct file *file)
@@ -2197,8 +2215,9 @@ static int ab8540_gpadc_vbat_true_meas_print(struct
seq_file *s, void *p)
ab8500_gpadc_ad_to_voltage(gpadc, VBAT_TRUE_MEAS,
vbat_true_meas_raw);
- return seq_printf(s, "%d,0x%X\n",
- vbat_true_meas_convert, vbat_true_meas_raw);
+ seq_printf(s, "%d,0x%X\n", vbat_true_meas_convert, vbat_true_meas_raw);
+
+ return 0;
}
static int ab8540_gpadc_vbat_true_meas_open(struct inode *inode,
@@ -2233,9 +2252,13 @@ static int ab8540_gpadc_bat_ctrl_and_ibat_print(struct
seq_file *s, void *p)
ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
ibat_raw);
- return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n",
- bat_ctrl_convert, bat_ctrl_raw,
- ibat_convert, ibat_raw);
+ seq_printf(s,
+ "%d,0x%X\n"
+ "%d,0x%X\n",
+ bat_ctrl_convert, bat_ctrl_raw,
+ ibat_convert, ibat_raw);
+
+ return 0;
}
static int ab8540_gpadc_bat_ctrl_and_ibat_open(struct inode *inode,
@@ -2269,9 +2292,13 @@ static int ab8540_gpadc_vbat_meas_and_ibat_print(struct
seq_file *s, void *p)
ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
ibat_raw);
- return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n",
- vbat_meas_convert, vbat_meas_raw,
- ibat_convert, ibat_raw);
+ seq_printf(s,
+ "%d,0x%X\n"
+ "%d,0x%X\n",
+ vbat_meas_convert, vbat_meas_raw,
+ ibat_convert, ibat_raw);
+
+ return 0;
}
static int ab8540_gpadc_vbat_meas_and_ibat_open(struct inode *inode,
@@ -2307,9 +2334,13 @@ static int
ab8540_gpadc_vbat_true_meas_and_ibat_print(struct seq_file *s,
ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
ibat_raw);
- return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n",
- vbat_true_meas_convert, vbat_true_meas_raw,
- ibat_convert, ibat_raw);
+ seq_printf(s,
+ "%d,0x%X\n"
+ "%d,0x%X\n",
+ vbat_true_meas_convert, vbat_true_meas_raw,
+ ibat_convert, ibat_raw);
+
+ return 0;
}
static int ab8540_gpadc_vbat_true_meas_and_ibat_open(struct inode *inode,
@@ -2344,9 +2375,13 @@ static int ab8540_gpadc_bat_temp_and_ibat_print(struct
seq_file *s, void *p)
ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
ibat_raw);
- return seq_printf(s, "%d,0x%X\n" "%d,0x%X\n",
- bat_temp_convert, bat_temp_raw,
- ibat_convert, ibat_raw);
+ seq_printf(s,
+ "%d,0x%X\n"
+ "%d,0x%X\n",
+ bat_temp_convert, bat_temp_raw,
+ ibat_convert, ibat_raw);
+
+ return 0;
}
static int ab8540_gpadc_bat_temp_and_ibat_open(struct inode *inode,
@@ -2373,16 +2408,19 @@ static int ab8540_gpadc_otp_cal_print(struct seq_file
*s, void *p)
gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
ab8540_gpadc_get_otp(gpadc, &vmain_l, &vmain_h, &btemp_l, &btemp_h,
&vbat_l, &vbat_h, &ibat_l, &ibat_h);
- return seq_printf(s, "VMAIN_L:0x%X\n"
- "VMAIN_H:0x%X\n"
- "BTEMP_L:0x%X\n"
- "BTEMP_H:0x%X\n"
- "VBAT_L:0x%X\n"
- "VBAT_H:0x%X\n"
- "IBAT_L:0x%X\n"
- "IBAT_H:0x%X\n",
- vmain_l, vmain_h, btemp_l, btemp_h,
- vbat_l, vbat_h, ibat_l, ibat_h);
+ seq_printf(s,
+ "VMAIN_L:0x%X\n"
+ "VMAIN_H:0x%X\n"
+ "BTEMP_L:0x%X\n"
+ "BTEMP_H:0x%X\n"
+ "VBAT_L:0x%X\n"
+ "VBAT_H:0x%X\n"
+ "IBAT_L:0x%X\n"
+ "IBAT_H:0x%X\n",
+ vmain_l, vmain_h, btemp_l, btemp_h,
+ vbat_l, vbat_h, ibat_l, ibat_h);
+
+ return 0;
}
static int ab8540_gpadc_otp_cal_open(struct inode *inode, struct file *file)
@@ -2400,7 +2438,9 @@ static const struct file_operations
ab8540_gpadc_otp_calib_fops = {
static int ab8500_gpadc_avg_sample_print(struct seq_file *s, void *p)
{
- return seq_printf(s, "%d\n", avg_sample);
+ seq_printf(s, "%d\n", avg_sample);
+
+ return 0;
}
static int ab8500_gpadc_avg_sample_open(struct inode *inode, struct file *file)
@@ -2445,7 +2485,9 @@ static const struct file_operations
ab8500_gpadc_avg_sample_fops = {
static int ab8500_gpadc_trig_edge_print(struct seq_file *s, void *p)
{
- return seq_printf(s, "%d\n", trig_edge);
+ seq_printf(s, "%d\n", trig_edge);
+
+ return 0;
}
static int ab8500_gpadc_trig_edge_open(struct inode *inode, struct file *file)
@@ -2490,7 +2532,9 @@ static const struct file_operations
ab8500_gpadc_trig_edge_fops = {
static int ab8500_gpadc_trig_timer_print(struct seq_file *s, void *p)
{
- return seq_printf(s, "%d\n", trig_timer);
+ seq_printf(s, "%d\n", trig_timer);
+
+ return 0;
}
static int ab8500_gpadc_trig_timer_open(struct inode *inode, struct file *file)
@@ -2533,7 +2577,9 @@ static const struct file_operations
ab8500_gpadc_trig_timer_fops = {
static int ab8500_gpadc_conv_type_print(struct seq_file *s, void *p)
{
- return seq_printf(s, "%d\n", conv_type);
+ seq_printf(s, "%d\n", conv_type);
+
+ return 0;
}
static int ab8500_gpadc_conv_type_open(struct inode *inode, struct file *file)
--
2.1.2
--
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