6.5-stable review patch. If anyone has any objections, please let me know.
------------------
From: Shawn.Shao <shawn.shao@xxxxxxxxxxxxxxx>
commit d121df789b159e9a8ee770666f210975a81e8111 upstream.
If the shared_buffer allocation fails, need to unregister mgmt_dev first.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: abebb16254b36 ("vdpa_sim_blk: support shared backend")
Signed-off-by: Shawn.Shao <shawn.shao@xxxxxxxxxxxxxxx>
Acked-by: Jason Wang <jasowang@xxxxxxxxxx>
Message-Id: <20230821060333.1155-1-shawn.shao@xxxxxxxxxxxxxxx>
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
index 00d7d72713be..b3a3cb165795 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
@@ -499,12 +499,13 @@ static int __init vdpasim_blk_init(void)
GFP_KERNEL);
if (!shared_buffer) {
ret = -ENOMEM;
- goto parent_err;
+ goto mgmt_dev_err;
}
}
return 0;
-
+mgmt_dev_err:
+ vdpa_mgmtdev_unregister(&mgmt_dev);
parent_err:
device_unregister(&vdpasim_blk_mgmtdev);
return ret;
--
2.42.0
