scsi: iscsi: Do not put host in iscsi_set_flashnode_param()

[ Upstream commit 68e12e5f61354eb42cfffbc20a693153fc39738e ]

If scsi_host_lookup() fails we will jump to put_host which may cause a
panic. Jump to exit_set_fnode instead.

Link: https://lore.kernel.org/r/20200615081226.183068-1-jingxiangfeng@huawei.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 42b97f1..c2bce3f 100644 (file)
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -3191,7 +3191,7 @@ static int iscsi_set_flashnode_param(struct iscsi_transport *transport,
                pr_err("%s could not find host no %u\n",
                       __func__, ev->u.set_flashnode.host_no);
                err = -ENODEV;
-               goto put_host;
+               goto exit_set_fnode;
        }
 
        idx = ev->u.set_flashnode.flashnode_idx;