of_device_get_match_data could return NULL, and so can cause
a NULL pointer dereference later.
Signed-off-by: Shailendra Verma <shailendr...@samsung.com>
---
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);
--
1.7.9.5
