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36 lines
1.1 KiB
Diff
36 lines
1.1 KiB
Diff
From 2812d071eb348d903620f7ebadaf848024b3c672 Mon Sep 17 00:00:00 2001
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From: Sandor Yu <Sandor.yu@nxp.com>
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Date: Wed, 20 Jan 2021 11:04:41 +0800
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Subject: [PATCH 24/49] LF-3269: drm: cdns-hdmi: fix coverity Issue: 11566404
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Check return value to fix coverity Issue: 11566404.
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Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
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Reviewed-by: Robby Cai <robby.cai@nxp.com>
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---
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drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
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index 2300c3d8a91d..df8ac87b3a54 100644
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--- a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
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+++ b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
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@@ -59,9 +59,12 @@ static ssize_t HDCPTX_Version_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count)
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{
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struct cdns_mhdp_device *mhdp = dev_get_drvdata(dev);
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- int value;
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+ int value, ret;
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+
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+ ret = sscanf(buf, "%d", &value);
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+ if (ret != 1)
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+ return -EINVAL;
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- sscanf(buf, "%d", &value);
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if (value == 2)
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mhdp->hdcp.config = 2;
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else if (value == 1)
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--
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2.29.2
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