9P/RDMA: Do not free req->rc in error handling in rdma_request()

rdma_request() should never be in charge of freeing rc.

When an error occurs:
* Either the rc buffer has been recv_post()'ed.
  then kfree()'ing it certainly is a bad idea.
* Or is has not, and in that case req->rc still points to it,
  hence it needs not be freed.

Signed-off-by: Simon Derr <simon.derr@bull.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

1 files changed, 3 insertions, 6 deletions

diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index ad8dc331574b..1bd4c7150114 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -447,7 +447,7 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
         err = post_recv(client, rpl_context);
         if (err) {
                 p9_debug(P9_DEBUG_FCALL, "POST RECV failed\n");
-                goto err_free1;
+                goto err_free;
         }
 
         /* remove posted receive buffer from request structure */
@@ -457,7 +457,7 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
         c = kmalloc(sizeof *c, GFP_NOFS);
         if (!c) {
                 err = -ENOMEM;
-                goto err_free1;
+                goto err_free;
         }
         c->req = req;
 
@@ -486,13 +486,10 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
 
  error:
         kfree(c);
-        kfree(rpl_context->rc);
         kfree(rpl_context);
         p9_debug(P9_DEBUG_ERROR, "EIO\n");
         return -EIO;
- err_free1:
-        kfree(rpl_context->rc);
- err_free2:
+ err_free:
         kfree(rpl_context);
  err_close:
         spin_lock_irqsave(&rdma->req_lock, flags);