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