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| author |   Wenchao Hao <haowenchao@huawei.com> | 2022-03-31 21:10:19 -0400 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2022-04-06 22:37:49 -0400 |
| commit | 03252259e18e63eb56a0d29c2fefcc30b58b812b (patch) | |
| tree | c650f31b845a335e942630b1e121a7971e352837 /drivers/scsi/sd.c | |
| parent | scsi: message: fusion: Remove redundant variable dmp (diff) | |
| download | linux-dev-03252259e18e63eb56a0d29c2fefcc30b58b812b.tar.xz linux-dev-03252259e18e63eb56a0d29c2fefcc30b58b812b.zip | |
scsi: sd: Clean up gendisk if device_add_disk() failed
We forgot to call blk_cleanup_disk() when device_add_disk() failed. This
would cause a memory leak of gendisk and sched_tags allocated in
elevator_init_mq()
Reference:https://syzkaller.appspot.com/x/log.txt?x=13b41dcb700000
Reported-and-tested-by: syzbot+f08c77040fa163a75a46@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20220401011018.1026553-1-haowenchao@huawei.com
Signed-off-by: Wenchao Hao <haowenchao@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/sd.c')
| -rw-r--r-- | drivers/scsi/sd.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index cecba3fcbc61..dc6e55761fd1 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -3475,6 +3475,7 @@ static int sd_probe(struct device *dev) error = device_add_disk(dev, gd, NULL); if (error) { put_device(&sdkp->disk_dev); + blk_cleanup_disk(gd); goto out; } |