utils: fix segfault in iwinfo_hardware_id_from_mtd()

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

diff --git a/iwinfo_utils.c b/iwinfo_utils.c
index f4b7b586c65e8417e01ffe60b2535b45a2086504..3b993d124884a061fe8444ac8a871491e03bb379 100644 (file)
--- a/iwinfo_utils.c
+++ b/iwinfo_utils.c
@@ -177,8 +177,8 @@ int iwinfo_hardware_id_from_mtd(struct iwinfo_hardware_id *id)
        FILE *mtd;
        uint16_t *bc;
 
-       int fd;
-       unsigned int len, off;
+       int fd, off;
+       unsigned int len;
        char buf[128];
 
        if (!(mtd = fopen("/proc/mtd", "r")))
@@ -186,7 +186,7 @@ int iwinfo_hardware_id_from_mtd(struct iwinfo_hardware_id *id)
 
        while (fgets(buf, sizeof(buf), mtd) != NULL)
        {
-               if (fscanf(mtd, "mtd%u: %x %*x %127s", &off, &len, buf) < 3 ||
+               if (fscanf(mtd, "mtd%d: %x %*x %127s", &off, &len, buf) < 3 ||
                    (strcmp(buf, "\"boardconfig\"") && strcmp(buf, "\"EEPROM\"") &&
                     strcmp(buf, "\"factory\"")))
                {