[PATCH] staging: lustre: lov: Fix signed wrap around when decrementing index 'i'

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

Change predecrement compare to post decrement compare to avoid an
unsigned integer wrap-around comparisomn when decrementing in the while
loop.

Issue found with static analysis with CoverityScan, CID 1375917

Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 drivers/staging/lustre/lustre/lov/lov_ea.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c
index 53db170..399298c 100644
--- a/drivers/staging/lustre/lustre/lov/lov_ea.c
+++ b/drivers/staging/lustre/lustre/lov/lov_ea.c
@@ -102,7 +102,7 @@ struct lov_stripe_md *lsm_alloc_plain(u16 stripe_count)
 	return lsm;
 
 err:
-	while (--i >= 0)
+	while (i-- > 0)
 		kmem_cache_free(lov_oinfo_slab, lsm->lsm_oinfo[i]);
 	kvfree(lsm);
 	return NULL;
-- 
2.10.2