Messages in this thread Patch in this message | | | From | LABBE Corentin <> | Subject | [PATCH] pwm: sun4i: fix a possible NULL dereference | Date | Thu, 12 Nov 2015 08:42:12 +0100 |
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of_match_device could return NULL, and so cause a NULL pointer dereference later.
Reported-by: coverity (CID 1324139) Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> --- drivers/pwm/pwm-sun4i.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c index cd9dde5..3011fcc 100644 --- a/drivers/pwm/pwm-sun4i.c +++ b/drivers/pwm/pwm-sun4i.c @@ -291,6 +291,8 @@ static int sun4i_pwm_probe(struct platform_device *pdev) const struct of_device_id *match; match = of_match_device(sun4i_pwm_dt_ids, &pdev->dev); + if (!match) + return -ENODEV; pwm = devm_kzalloc(&pdev->dev, sizeof(*pwm), GFP_KERNEL); if (!pwm) -- 2.4.10
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