linux-kernel - [PATCH v4 2/5] media: venus: core: Fix error handling in probe

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Message-Id: <1595503612-2901-3-git-send-email-rnayak@codeaurora.org>
Date:   Thu, 23 Jul 2020 16:56:49 +0530
From:   Rajendra Nayak <rnayak@...eaurora.org>
To:     stanimir.varbanov@...aro.org, robh+dt@...nel.org,
        agross@...nel.org, bjorn.andersson@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        mka@...omium.org, Rajendra Nayak <rnayak@...eaurora.org>
Subject: [PATCH v4 2/5] media: venus: core: Fix error handling in probe

Post a successful pm_ops->core_get, an error in probe
should exit by doing a pm_ops->core_put which seems
to be missing. So fix it.

Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
---
 drivers/media/platform/qcom/venus/core.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 203c653..bfcaba3 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -224,13 +224,15 @@ static int venus_probe(struct platform_device *pdev)
 
 	ret = dma_set_mask_and_coherent(dev, core->res->dma_mask);
 	if (ret)
-		return ret;
+		goto err_core_put;
 
 	if (!dev->dma_parms) {
 		dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms),
 					      GFP_KERNEL);
-		if (!dev->dma_parms)
-			return -ENOMEM;
+		if (!dev->dma_parms) {
+			ret = -ENOMEM;
+			goto err_core_put;
+		}
 	}
 	dma_set_max_seg_size(dev, DMA_BIT_MASK(32));
 
@@ -242,11 +244,11 @@ static int venus_probe(struct platform_device *pdev)
 					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
 					"venus", core);
 	if (ret)
-		return ret;
+		goto err_core_put;
 
 	ret = hfi_create(core, &venus_core_ops);
 	if (ret)
-		return ret;
+		goto err_core_put;
 
 	pm_runtime_enable(dev);
 
@@ -302,6 +304,9 @@ static int venus_probe(struct platform_device *pdev)
 	pm_runtime_set_suspended(dev);
 	pm_runtime_disable(dev);
 	hfi_destroy(core);
+err_core_put:
+	if (core->pm_ops->core_put)
+		core->pm_ops->core_put(dev);
 	return ret;
 }
 
-- 
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