[PATCH] Input: tegra-kbc - Fix possible NULL derefrence.

From	Shailendra Verma <shailendra.v@samsung.com>
Newsgroups	linux.kernel
Subject	[PATCH] Input: tegra-kbc - Fix possible NULL derefrence.
Date	2017-01-27 11:50 +0100
Message-ID	<t4cgq-2YU-7@gated-at.bofh.it> (permalink)
References	<t4cgq-2YU-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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of_match_device could return NULL, and so cause a NULL pointer
dereference later.

Signed-off-by: Shailendra Verma <shailendra.v@samsung.com>
---
 drivers/input/keyboard/tegra-kbc.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index 0c07e10..1f213ba 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -617,6 +617,11 @@ static int tegra_kbc_probe(struct platform_device *pdev)
 	const struct of_device_id *match;
 
 	match = of_match_device(tegra_kbc_of_match, &pdev->dev);
+
+	if (!match) {
+		dev_err(&pdev->dev, "Error: No device match found\n");
+		return -ENODEV;
+	}
 
 	kbc = devm_kzalloc(&pdev->dev, sizeof(*kbc), GFP_KERNEL);
 	if (!kbc) {
-- 
1.7.9.5

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[PATCH] Input: tegra-kbc - Fix possible NULL derefrence. Shailendra Verma <shailendra.v@samsung.com> - 2017-01-27 11:50 +0100
  Re: [PATCH] Input: tegra-kbc - Fix possible NULL derefrence. Thierry Reding <thierry.reding@gmail.com> - 2017-01-27 12:10 +0100

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