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-rw-r--r--drivers/ssb/sprom.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/ssb/sprom.c b/drivers/ssb/sprom.c
index 3668edb39315..17471a7155c9 100644
--- a/drivers/ssb/sprom.c
+++ b/drivers/ssb/sprom.c
@@ -13,6 +13,8 @@
#include "ssb_private.h"
+#include <linux/ctype.h>
+
static int sprom2hex(const u16 *sprom, char *buf, size_t buf_len,
size_t sprom_size_words)
@@ -30,17 +32,27 @@ static int sprom2hex(const u16 *sprom, char *buf, size_t buf_len,
static int hex2sprom(u16 *sprom, const char *dump, size_t len,
size_t sprom_size_words)
{
- char tmp[5] = { 0 };
- int cnt = 0;
+ char c, tmp[5] = { 0 };
+ int err, cnt = 0;
unsigned long parsed;
- if (len < sprom_size_words * 2)
+ /* Strip whitespace at the end. */
+ while (len) {
+ c = dump[len - 1];
+ if (!isspace(c) && c != '\0')
+ break;
+ len--;
+ }
+ /* Length must match exactly. */
+ if (len != sprom_size_words * 4)
return -EINVAL;
while (cnt < sprom_size_words) {
memcpy(tmp, dump, 4);
dump += 4;
- parsed = simple_strtoul(tmp, NULL, 16);
+ err = strict_strtoul(tmp, 16, &parsed);
+ if (err)
+ return err;
sprom[cnt++] = swab16((u16)parsed);
}