svcrdma: Pass a useful error code to the send_err tracepoint

Capture error codes in @ret, which is passed to the send_err
tracepoint, so that they can be logged when something goes awry.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2021-04-11 14:19:08 -04:00
commit 8727f78855