It is possible edma_execute is called even when all the SG
elements have been submitted for transmission, we add a check
for the same and avoid executing the rest of the function.
Signed-off-by: Joel Fernandes <joelf@xxxxxx>
---
drivers/dma/edma.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index eca1b47..62987fc 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -168,6 +168,9 @@ static void edma_execute(struct edma_chan *echan)
total_left = edesc->pset_nr - edesc->total_processed;
total_link_set = total_left > MAX_NR_LS ? MAX_NR_LS : total_left;
+ if (!total_left)
+ return;
+
/* First time, setup 2 cyclically linked sets, each containing half
the slots allocated for this channel */
if (edesc->total_processed == 0) {
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
