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MIPS: FW: Use kstrtoul() to parse unsigned long from the fw environment 

Fix some value corruptions with values that can't be represented in a
signed long.

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8358/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
hifive-unleashed-5.1
Alban Bedel 2014-11-08 12:39:39 +01:00 committed by Ralf Baechle
parent 4a792e56cf
commit 484c344985
1 changed files with 3 additions and 3 deletions
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6
arch/mips/fw/lib/cmdline.c
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@ -88,13 +88,13 @@ unsigned long fw_getenvl(char *envname)
{
unsigned long envl = 0UL;
char *str;
long val;
int tmp;
str = fw_getenv(envname);
if (str) {
tmp = kstrtol(str, 0, &val);
envl = (unsigned long)val;
tmp = kstrtoul(str, 0, &envl);
if (tmp)
envl = 0;
}
return envl;