dmaengine: ti: edma: fix missed failure handling

[ Upstream commit 340049d453682a9fe8d91fe794dd091730f4bb25 ]

When devm_kcalloc fails, it forgets to call edma_free_slot.
Replace direct return with failure handler to fix it.

Fixes: 1be5336bc7ba ("dmaengine: edma: New device tree binding")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20191118073802.28424-1-hslester96@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index e508c8c..17521fc 100644 (file)
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -2288,8 +2288,10 @@ static int edma_probe(struct platform_device *pdev)
 
                ecc->tc_list = devm_kcalloc(dev, ecc->num_tc,
                                            sizeof(*ecc->tc_list), GFP_KERNEL);
-               if (!ecc->tc_list)
-                       return -ENOMEM;
+               if (!ecc->tc_list) {
+                       ret = -ENOMEM;
+                       goto err_reg1;
+               }
 
                for (i = 0;; i++) {
                        ret = of_parse_phandle_with_fixed_args(node, "ti,tptcs",