[U-Boot] [PATCH] tools/kwbimage.c: fix parser error handling

andreas.devel at googlemail.com
2014-10-24T21:25:52Z

From: Andreas Bie?mann <andreas.devel@googlemail.com>

The two error checks for image_boot_mode_id and image_nand_ecc_mode_id where
wrong and would never fail, fix that!

This was detected by Apple's clang compiler:
---8<---
HOSTCC tools/kwbimage.o
tools/kwbimage.c:553:20: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
if (el->bootfrom < 0) {
~~~~~~~~~~~~ ^ ~
tools/kwbimage.c:571:23: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
if (el->nandeccmode < 0) {
~~~~~~~~~~~~~~~ ^ ~
2 warnings generated.
--->8---

Signed-off-by: Andreas Bie?mann <andreas.devel@googlemail.com>
---

tools/kwbimage.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/tools/kwbimage.c b/tools/kwbimage.c
index 42870ed..8fd70ef 100644
--- a/tools/kwbimage.c
+++ b/tools/kwbimage.c
@@ -548,13 +548,14 @@ static int image_create_config_parse_oneline(char *line,
el->version = atoi(value);
} else if (!strcmp(keyword, "BOOT_FROM")) {
char *value = strtok_r(NULL, deliminiters, &saveptr);
- el->type = IMAGE_CFG_BOOT_FROM;
- el->bootfrom = image_boot_mode_id(value);
- if (el->bootfrom < 0) {
+ int ret = image_boot_mode_id(value);
+ if (ret < 0) {
fprintf(stderr,
"Invalid boot media '%s'\n", value);
return -1;
}
+ el->type = IMAGE_CFG_BOOT_FROM;
+ el->bootfrom = ret;
} else if (!strcmp(keyword, "NAND_BLKSZ")) {
char *value = strtok_r(NULL, deliminiters, &saveptr);
el->type = IMAGE_CFG_NAND_BLKSZ;
@@ -566,13 +567,14 @@ static int image_create_config_parse_oneline(char *line,
strtoul(value, NULL, 16);
} else if (!strcmp(keyword, "NAND_ECC_MODE")) {
char *value = strtok_r(NULL, deliminiters, &saveptr);
- el->type = IMAGE_CFG_NAND_ECC_MODE;
- el->nandeccmode = image_nand_ecc_mode_id(value);
- if (el->nandeccmode < 0) {
+ int ret = image_nand_ecc_mode_id(value);
+ if (ret < 0) {
fprintf(stderr,
"Invalid NAND ECC mode '%s'\n", value);
return -1;
}
+ el->type = IMAGE_CFG_NAND_ECC_MODE;
+ el->nandeccmode = ret;
} else if (!strcmp(keyword, "NAND_PAGE_SIZE")) {
char *value = strtok_r(NULL, deliminiters, &saveptr);
el->type = IMAGE_CFG_NAND_PAGESZ;
--
1.9.3 (Apple Git-50)