5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Nigel Croxon <ncroxon@xxxxxxxxxx>
[ Upstream commit df203da47f4428bc286fc99318936416253a321c ]
There is a compile error when this commit is added:
md: raid1: fix potential OOB in raid1_remove_disk()
drivers/md/raid1.c: In function 'raid1_remove_disk':
drivers/md/raid1.c:1844:9: error: ISO C90 forbids mixed declarations
and code [-Werror=declaration-after-statement]
1844 | struct raid1_info *p = conf->mirrors + number;
| ^~~~~~
That's because the new code was inserted before the struct.
The change is move the struct command above this commit.
Fixes: 8b0472b50bcf ("md: raid1: fix potential OOB in raid1_remove_disk()")
Signed-off-by: Nigel Croxon <ncroxon@xxxxxxxxxx>
Signed-off-by: Song Liu <song@xxxxxxxxxx>
Link: https://lore.kernel.org/r/46d929d0-2aab-4cf2-b2bf-338963e8ba5a@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/md/raid1.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index f96e079454700..c40237cfdcb0f 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1808,12 +1808,11 @@ static int raid1_remove_disk(struct mddev *mddev, struct md_rdev *rdev)
struct r1conf *conf = mddev->private;
int err = 0;
int number = rdev->raid_disk;
+ struct raid1_info *p = conf->mirrors + number;
if (unlikely(number >= conf->raid_disks))
goto abort;
- struct raid1_info *p = conf->mirrors + number;
-
if (rdev != p->rdev)
p = conf->mirrors + conf->raid_disks + number;
--
2.40.1
