xprtrdma: Change return value of rpcrdma_prepare_send_sges()

Clean up: Make rpcrdma_prepare_send_sges() return a negative errno
instead of a bool. Soon callers will want distinct treatments of
different types of failures.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2017-10-20 10:47:55 -04:00 • committed by Anna Schumaker
commit 857f9acab9
3 changed files with 38 additions and 24 deletions