[PATCH] cifsd: fix a IS_ERR() vs NULL bug

[Dan Carpenter]

The smb_direct_alloc_sendmsg() function never returns NULL, it only
returns error pointers so the check needs to be updated.

Fixes: cabcebc31de4 ("cifsd: introduce SMB3 kernel server")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
 fs/cifsd/transport_rdma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/cifsd/transport_rdma.c b/fs/cifsd/transport_rdma.c
index 1698f7ed9c2f..638b551019a1 100644
--- a/fs/cifsd/transport_rdma.c
+++ b/fs/cifsd/transport_rdma.c
@@ -997,8 +997,8 @@ static int smb_direct_create_header(struct 
smb_direct_transport *t,
        int ret;
 
        sendmsg = smb_direct_alloc_sendmsg(t);
-       if (!sendmsg)
-               return -ENOMEM;
+       if (IS_ERR(sendmsg))
+               return PTR_ERR(sendmsg);
 
        /* Fill in the packet header */
        packet = (struct smb_direct_data_transfer *)sendmsg->packet;
-- 
2.30.2