From 6a40cbbe471bc7b821458973a5c18ba3d97d72f4 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Fri, 2 Aug 2013 04:58:25 -0300 Subject: [PATCH] [media] exynos4-is: Fix potential NULL pointer dereference dev->of_node could be NULL. Hence check for the same and return before dereferencing it in the subsequent error message. Signed-off-by: Sachin Kamat Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/exynos4-is/fimc-lite.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c index 08fbfedea90f..318d4c3e3b61 100644 --- a/drivers/media/platform/exynos4-is/fimc-lite.c +++ b/drivers/media/platform/exynos4-is/fimc-lite.c @@ -1504,16 +1504,17 @@ static int fimc_lite_probe(struct platform_device *pdev) struct resource *res; int ret; + if (!dev->of_node) + return -ENODEV; + fimc = devm_kzalloc(dev, sizeof(*fimc), GFP_KERNEL); if (!fimc) return -ENOMEM; - if (dev->of_node) { - of_id = of_match_node(flite_of_match, dev->of_node); - if (of_id) - drv_data = (struct flite_drvdata *)of_id->data; - fimc->index = of_alias_get_id(dev->of_node, "fimc-lite"); - } + of_id = of_match_node(flite_of_match, dev->of_node); + if (of_id) + drv_data = (struct flite_drvdata *)of_id->data; + fimc->index = of_alias_get_id(dev->of_node, "fimc-lite"); if (!drv_data || fimc->index >= drv_data->num_instances || fimc->index < 0) {