We forget to call blk_cleanup_disk() when device_add_disk() failed.
Which would cause memory leak of gendisk and sched_tags alloced in
elevator_init_mq()
Reference:https://syzkaller.appspot.com/x/log.txt?x=13b41dcb700000
Reported-and-tested-by: [email protected]
Signed-off-by: Wenchao Hao <[email protected]>
---
drivers/scsi/sd.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a390679cf458..4620a1158272 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;
}
--
2.32.0