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* [PATCH] staging: lustre: fid: lproc_fid: Improving error control
@ 2015-01-29 21:37 Rickard Strandqvist
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From: Rickard Strandqvist @ 2015-01-29 21:37 UTC (permalink / raw)
To: Oleg Drokin, Andreas Dilger
Cc: Rickard Strandqvist, Greg Kroah-Hartman, Dmitry Eremin,
Eddie Kovsky, Anil Belur, HPDD-discuss, devel, linux-kernel
Improving error checking by now use a return value from sscanf.
This was found using a static code analysis program called cppcheck
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
---
drivers/staging/lustre/lustre/fid/lproc_fid.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/lustre/lustre/fid/lproc_fid.c b/drivers/staging/lustre/lustre/fid/lproc_fid.c
index 6a21f07..9b4ada4 100644
--- a/drivers/staging/lustre/lustre/fid/lproc_fid.c
+++ b/drivers/staging/lustre/lustre/fid/lproc_fid.c
@@ -85,7 +85,7 @@ static int lprocfs_fid_write_common(const char __user *buffer, size_t count,
rc = sscanf(kernbuf, "[%llx - %llx]\n",
(unsigned long long *)&tmp.lsr_start,
(unsigned long long *)&tmp.lsr_end);
- if (!range_is_sane(&tmp) || range_is_zero(&tmp) ||
+ if (rc != 2 || !range_is_sane(&tmp) || range_is_zero(&tmp) ||
tmp.lsr_start < range->lsr_start || tmp.lsr_end > range->lsr_end)
return -EINVAL;
*range = tmp;
--
1.7.10.4
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2015-01-29 21:37 [PATCH] staging: lustre: fid: lproc_fid: Improving error control Rickard Strandqvist
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