From: Chuhong Yuan <hslester96@gmail.com>
Date: Mon, 18 Nov 2019 07:38:02 +0000 (+0800)
Subject: dmaengine: ti: edma: fix missed failure handling
X-Git-Tag: v4.9.212~45
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a52766faeab5957844e119af23ef8c8599521ef3;p=thirdparty%2Fkernel%2Fstable.git

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 72f31e837b1d5..56ec724687456 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -2340,8 +2340,10 @@ 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",