tmiofb: missing NULL pointer checks

Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=44471
Reported-by: <rucsoftsec@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/video/tmiofb.c b/drivers/video/tmiofb.c
index 8e4a446..b244f06 100644 (file)
--- a/drivers/video/tmiofb.c
+++ b/drivers/video/tmiofb.c
@@ -694,6 +694,10 @@ static int __devinit tmiofb_probe(struct platform_device *dev)
                dev_err(&dev->dev, "NULL platform data!\n");
                return -EINVAL;
        }
+       if (ccr == NULL || lcr == NULL || vram == NULL || irq < 0) {
+               dev_err(&dev->dev, "missing resources\n");
+               return -EINVAL;
+       }
 
        info = framebuffer_alloc(sizeof(struct tmiofb_par), &dev->dev);