[PATCH] Video: fbdev - Fix possible NULL derefrence.
From: Shailendra Verma <hidden>
Date: 2017-01-30 05:03:42
Also in:
lkml
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
of_device_get_match_data could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <redacted> --- drivers/video/fbdev/ssd1307fb.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index 2925d5c..bdf7d80 100644
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c@@ -560,6 +560,10 @@ static int ssd1307fb_probe(struct i2c_client *client, par->client = client; par->device_info = of_device_get_match_data(&client->dev); + if (!par->device_info) { + dev_err(&client->dev, "no device match found\n"); + return -ENODEV; + } par->reset = of_get_named_gpio(client->dev.of_node, "reset-gpios", 0);
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1.7.9.5