Specifying spispeed=reserved as programmer parameter resulted in
selecting the default SPI speed instead of aborting.
Rewrite the logic to be more readable.

Note: I prefer ! instead of == 0, but Stefan Tauner prefers == 0. A
matter of taste.

Signed-off-by: Carl-Daniel Hailfinger <[email protected]>

Index: flashrom-sb600_spi_speedselection_cleanup/sb600spi.c
===================================================================
--- flashrom-sb600_spi_speedselection_cleanup/sb600spi.c        (Revision 1948)
+++ flashrom-sb600_spi_speedselection_cleanup/sb600spi.c        (Arbeitskopie)
@@ -387,24 +387,22 @@
 static int handle_speed(struct pci_dev *dev)
 {
        uint32_t tmp;
-       int8_t spispeed_idx = 3; /* Default to 16.5 MHz */
+       uint8_t spispeed_idx = 3; /* Default to 16.5 MHz */
 
        char *spispeed = extract_programmer_param("spispeed");
        if (spispeed != NULL) {
-               if (strcasecmp(spispeed, "reserved") != 0) {
-                       int i;
-                       for (i = 0; i < ARRAY_SIZE(spispeeds); i++) {
-                               if (strcasecmp(spispeeds[i].name, spispeed) == 
0) {
-                                       spispeed_idx = i;
-                                       break;
-                               }
+               int i;
+               for (i = 0; i < ARRAY_SIZE(spispeeds); i++) {
+                       if (strcasecmp(spispeeds[i].name, spispeed) == 0) {
+                               spispeed_idx = i;
+                               break;
                        }
-                       /* Only Yangtze supports the second half of indices; no 
66 MHz before SB8xx. */
-                       if ((amd_gen < CHIPSET_YANGTZE && spispeed_idx > 3) ||
-                           (amd_gen < CHIPSET_SB89XX && spispeed_idx == 0))
-                               spispeed_idx = -1;
                }
-               if (spispeed_idx < 0) {
+               /* "reserved" is not a valid speed.
+                * Only Yangtze supports the second half of indices; no 66 MHz 
before SB8xx. */
+               if ((strcasecmp(spispeed, "reserved") == 0) ||
+                   (amd_gen < CHIPSET_YANGTZE && spispeed_idx > 3) ||
+                   (amd_gen < CHIPSET_SB89XX && spispeed_idx == 0)) {
                        msg_perr("Error: Invalid spispeed value: '%s'.\n", 
spispeed);
                        free(spispeed);
                        return 1;


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