hidma_ll_init() allocates a handoff FIFO, but the matching hidma_ll_uninit() function (which is invoked in remove()) never releases it, leaking memory.
To fix this call kfifo_free in hidma_ll_uninit().
Fixes: d1615ca2e085 ("dmaengine: qcom_hidma: implement lower level hardware interface") Cc: stable@vger.kernel.org Signed-off-by: Qasim Ijaz qasdev00@gmail.com
--- drivers/dma/qcom/hidma_ll.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/dma/qcom/hidma_ll.c b/drivers/dma/qcom/hidma_ll.c index fee448499777..0c2bae46746c 100644 --- a/drivers/dma/qcom/hidma_ll.c +++ b/drivers/dma/qcom/hidma_ll.c @@ -816,6 +816,7 @@ int hidma_ll_uninit(struct hidma_lldev *lldev)
required_bytes = sizeof(struct hidma_tre) * lldev->nr_tres; tasklet_kill(&lldev->task); + kfifo_free(&lldev->handoff_fifo); memset(lldev->trepool, 0, required_bytes); lldev->trepool = NULL; atomic_set(&lldev->pending_tre_count, 0);