From: Dan Carpenter dan.carpenter@oracle.com
commit 36d5d22090d13fd3a7a8c9663a711cbe6970aac8 upstream.
The caller is already holding the lock so this will deadlock.
Fixes: 0b58828c923e ("DMAENGINE: COH 901 318 remove irq counting") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Link: https://lore.kernel.org/r/20200217144050.3i4ymbytogod4ijn@kili.mountain Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/dma/coh901318.c | 4 ---- 1 file changed, 4 deletions(-)
--- a/drivers/dma/coh901318.c +++ b/drivers/dma/coh901318.c @@ -1944,8 +1944,6 @@ static void dma_tc_handle(struct coh9013 return; }
- spin_lock(&cohc->lock); - /* * When we reach this point, at least one queue item * should have been moved over from cohc->queue to @@ -1966,8 +1964,6 @@ static void dma_tc_handle(struct coh9013 if (coh901318_queue_start(cohc) == NULL) cohc->busy = 0;
- spin_unlock(&cohc->lock); - /* * This tasklet will remove items from cohc->active * and thus terminates them.