Calling kstrtoul requires checking the result. In case of
the viper_tpm_setup function, let's fail the __setup function
if the number was invalid.
Without this patch, building viper_defconfig results in:
arch/arm/mach-pxa/viper.c: In function 'viper_tpm_setup':
arch/arm/mach-pxa/viper.c:771:10: warning: ignoring return value of 'kstrtoul',
declared with attribute warn_unused_result [-Wunused-result]
Signed-off-by: Arnd Bergmann <a...@arndb.de>
Cc: Haojian Zhuang <haojian.zhu...@gmail.com>
Cc: Eric Miao <eric.y.m...@gmail.com>
Cc: Marc Zyngier <m...@misterjones.org>
---
arch/arm/mach-pxa/viper.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
index 130379f..ac733e9 100644
--- a/arch/arm/mach-pxa/viper.c
+++ b/arch/arm/mach-pxa/viper.c
@@ -768,8 +768,7 @@ static unsigned long viper_tpm;
static int __init viper_tpm_setup(char *str)
{
- strict_strtoul(str, 10, &viper_tpm);
- return 1;
+ return strict_strtoul(str, 10, &viper_tpm) >= 0;
}
__setup("tpm=", viper_tpm_setup);
--
1.7.10
--
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