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Commit ab05613a authored by majianpeng's avatar majianpeng Committed by NeilBrown
Browse files

md: Reassigned the parameters if read_seqretry returned true in func md_is_badblock. 



This bug was introduced by commit(v3.0-rc7-126-g2230dfe).
So fix is suitable for 3.0.y thru 3.6.y.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarJianpeng Ma <majianpeng@gmail.com>
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent ed30be07

drivers/md/md.c

+4 −3
Original line number Diff line number Diff line
@@ -7936,9 +7936,9 @@ int md_is_badblock(struct badblocks *bb, sector_t s, int sectors, 
		   sector_t *first_bad, int *bad_sectors)

{

	int hi;

	int lo = 0;

	int lo;

	u64 *p = bb->page;

	int rv = 0;

	int rv;

	sector_t target = s + sectors;

	unsigned seq;
@@ -7953,7 +7953,8 @@ int md_is_badblock(struct badblocks *bb, sector_t s, int sectors, 


retry:

	seq = read_seqbegin(&bb->lock);



	lo = 0;

	rv = 0;

	hi = bb->count;



	/* Binary search between lo and hi for 'target'