dmaengine: hsu: Fix memory leak when stopping a running transfer

The vd->node is removed from the lists when the transfer started so the
vchan_get_all_descriptors() will not find it. This results memory leak.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
[andy: fix the typo to prevent a compilation error]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/hsu/hsu.c b/drivers/dma/hsu/hsu.c
index 9b84def7a35373a45cf18efc9d53939bcc86baf0..f42f71e37e73767a55078aef4c81bcd238b02db1 100644 (file)
--- a/drivers/dma/hsu/hsu.c
+++ b/drivers/dma/hsu/hsu.c
@@ -384,7 +384,10 @@ static int hsu_dma_terminate_all(struct dma_chan *chan)
        spin_lock_irqsave(&hsuc->vchan.lock, flags);
 
        hsu_dma_stop_channel(hsuc);
-       hsuc->desc = NULL;
+       if (hsuc->desc) {
+               hsu_dma_desc_free(&hsuc->desc->vdesc);
+               hsuc->desc = NULL;
+       }
 
        vchan_get_all_descriptors(&hsuc->vchan, &head);
        spin_unlock_irqrestore(&hsuc->vchan.lock, flags);