[PATCH] Input: tegra-kbc - Fix possible NULL derefrence.
From: Shailendra Verma <hidden>
Date: 2017-01-27 10:43:56
Also in:
linux-tegra, lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, tegra kbc driver, the rest · Maintainers:
Dmitry Torokhov, Laxman Dewangan, Linus Torvalds
of_match_device could return NULL, and so cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <redacted> --- 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