AFS: Use patched rxrpc_kernel_send_data() correctly

Fix afs_send_simple_reply() to accept a greater-than-zero return value from
rxrpc_kernel_send_data() as being a successful return rather than thinking it
an error and aborting the call.

rxrpc_kernel_send_data() previously returned zero incorrectly when it worked
successfully, but has been patched to return the number of bytes it
transmitted.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index 1b36f45..8ccee9e 100644 (file)
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -792,6 +792,7 @@ void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len)
 {
        struct msghdr msg;
        struct iovec iov[1];
+       int n;
 
        _enter("");
 
@@ -806,22 +807,20 @@ void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len)
        msg.msg_flags           = 0;
 
        call->state = AFS_CALL_AWAIT_ACK;
-       switch (rxrpc_kernel_send_data(call->rxcall, &msg, len)) {
-       case 0:
+       n = rxrpc_kernel_send_data(call->rxcall, &msg, len);
+       if (n >= 0) {
                _leave(" [replied]");
                return;
-
-       case -ENOMEM:
+       }
+       if (n == -ENOMEM) {
                _debug("oom");
                rxrpc_kernel_abort_call(call->rxcall, RX_USER_ABORT);
-       default:
-               rxrpc_kernel_end_call(call->rxcall);
-               call->rxcall = NULL;
-               call->type->destructor(call);
-               afs_free_call(call);
-               _leave(" [error]");
-               return;
        }
+       rxrpc_kernel_end_call(call->rxcall);
+       call->rxcall = NULL;
+       call->type->destructor(call);
+       afs_free_call(call);
+       _leave(" [error]");
 }
 
 /*