diff mbox series

[v2,01/11] swim: fix cleanup on setup error

Message ID 6fc80069461e094f5d018c948873f11b8d4331de.1539284959.git.osandov@fb.com (mailing list archive)
State New, archived
Headers show
Series Convert floppy drivers to blk-mq | expand

Commit Message

Omar Sandoval Oct. 11, 2018, 7:20 p.m. UTC 
From: Omar Sandoval <osandov@fb.com>

If we fail to allocate the request queue for a disk, we still need to
free that disk, not just the previous ones. Additionally, we need to
cleanup the previous request queues.

Signed-off-by: Omar Sandoval <osandov@fb.com>
---
 drivers/block/swim.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index 0e31884a9519..cbe909c51847 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -887,8 +887,17 @@  static int swim_floppy_init(struct swim_priv *swd)
 
 exit_put_disks:
 	unregister_blkdev(FLOPPY_MAJOR, "fd");
-	while (drive--)
-		put_disk(swd->unit[drive].disk);
+	do {
+		struct gendisk *disk = swd->unit[drive].disk;
+
+		if (disk) {
+			if (disk->queue) {
+				blk_cleanup_queue(disk->queue);
+				disk->queue = NULL;
+			}
+			put_disk(disk);
+		}
+	} while (drive--);
 	return err;
 }