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Commit 65f53338 authored by Zhao Lei's avatar Zhao Lei Committed by Chris Mason
Browse files

btrfs: cleanup noused initialization of dev in btrfs_end_bio() 



It is introduced by:
 c404e0dc
 Btrfs: fix use-after-free in the finishing procedure of the device replace

But seems no relationship with that bug, this patch revirt these
code block for cleanup.

Signed-off-by: default avatarZhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent fe759907

fs/btrfs/volumes.c

+1 −1
Original line number Diff line number Diff line
@@ -5715,7 +5715,6 @@ static inline void btrfs_end_bbio(struct btrfs_bio *bbio, struct bio *bio, int e 
static void btrfs_end_bio(struct bio *bio, int err)

{

	struct btrfs_bio *bbio = bio->bi_private;

	struct btrfs_device *dev = bbio->stripes[0].dev;

	int is_orig_bio = 0;



	if (err) {
@@ -5723,6 +5722,7 @@ static void btrfs_end_bio(struct bio *bio, int err) 
		if (err == -EIO || err == -EREMOTEIO) {

			unsigned int stripe_index =

				btrfs_io_bio(bio)->stripe_index;

			struct btrfs_device *dev;



			BUG_ON(stripe_index >= bbio->num_stripes);

			dev = bbio->stripes[stripe_index].dev;