This is a note to let you know that I've just added the patch titled
md: clean up invalid BUG_ON in md_ioctl
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
md-clean-up-invalid-bug_on-in-md_ioctl.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 070b086f09f1d202a92d2c52db6b5caf992f129f
Author: Li Nan <linan122@xxxxxxxxxx>
Date: Mon Feb 26 11:14:38 2024 +0800
md: clean up invalid BUG_ON in md_ioctl
[ Upstream commit 9dd8702e7cd28ebf076ff838933f29cf671165ec ]
'disk->private_data' is set to mddev in md_alloc() and never set to NULL,
and users need to open mddev before submitting ioctl. So mddev must not
have been freed during ioctl, and there is no need to check mddev here.
Clean up it.
Signed-off-by: Li Nan <linan122@xxxxxxxxxx>
Reviewed-by: Yu Kuai <yukuai3@xxxxxxxxxx>
Signed-off-by: Song Liu <song@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240226031444.3606764-4-linan666@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 35b003b83ef1b..d1f6770c5cc09 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7652,11 +7652,6 @@ static int md_ioctl(struct block_device *bdev, blk_mode_t mode,
mddev = bdev->bd_disk->private_data;
- if (!mddev) {
- BUG();
- goto out;
- }
-
/* Some actions do not requires the mutex */
switch (cmd) {
case GET_ARRAY_INFO:
