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authorLABBE Corentin <clabbe.montjoie@gmail.com>2016-08-16 12:27:18 +0300
committerTomi Valkeinen <tomi.valkeinen@ti.com>2016-09-27 11:41:30 +0300
commitd8ed9e87e6016433b8d178728a5391ea68101bca (patch)
tree5b4a890f5466bbf9aa882c5191eeeb08115429e8 /drivers/video/fbdev/ssd1307fb.c
parent60169c3fb78e5cd61cb1343e7f3c5edb72702a04 (diff)
downloadlinux-d8ed9e87e6016433b8d178728a5391ea68101bca.tar.xz
fbdev: ssd1307fb: fix a possible NULL dereference
of_match_device could return NULL, and so cause a NULL pointer dereference later. For fixing this problem, we use of_device_get_match_data(), this will simplify the code a little by using a standard function for getting the match data. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/fbdev/ssd1307fb.c')
-rw-r--r--drivers/video/fbdev/ssd1307fb.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index 6a18bdc9fe47..2925d5ce8d3e 100644
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c
@@ -559,8 +559,7 @@ static int ssd1307fb_probe(struct i2c_client *client,
par->info = info;
par->client = client;
- par->device_info = of_match_device(ssd1307fb_of_match,
- &client->dev)->data;
+ par->device_info = of_device_get_match_data(&client->dev);
par->reset = of_get_named_gpio(client->dev.of_node,
"reset-gpios", 0);