tree a258fa32196a092826f42d0a500725453fe5a63e
parent 9dcb98a29b6e81394fa33ca984f3aaad4d0d1393
author Raag Jadav <raagjadav@gmail.com> 1561796448 +0530
committer Vinod Koul <vkoul@kernel.org> 1562519803 +0530

dmaengine: at_xdmac: check for non-empty xfers_list before invoking callback

tx descriptor retrieved from an empty xfers_list may not have valid
pointers to the callback functions.
Avoid calling dmaengine_desc_get_callback_invoke if xfers_list is empty.

Signed-off-by: Raag Jadav <raagjadav@gmail.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>