6.5-stable review patch. If anyone has any objections, please let me know.
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From: Shawn.Shao shawn.shao@jaguarmicro.com
commit d121df789b159e9a8ee770666f210975a81e8111 upstream.
If the shared_buffer allocation fails, need to unregister mgmt_dev first.
Cc: stable@vger.kernel.org Fixes: abebb16254b36 ("vdpa_sim_blk: support shared backend") Signed-off-by: Shawn.Shao shawn.shao@jaguarmicro.com Acked-by: Jason Wang jasowang@redhat.com Message-Id: 20230821060333.1155-1-shawn.shao@jaguarmicro.com Signed-off-by: Michael S. Tsirkin mst@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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;