video: fbdev: pxafb: fix out of memory error path

rjarzmik · tomba · commit 6f6abd360603 · 2016-01-18T10:26:17.000+02:00
As seen by Julia, the initial allocation memory is not checked anymore
after commit "video: fbdev: pxafb: initial devicetree conversion".
Introduce back the removed test.

Reported-by: Julia Lawall &lt;julia.lawall@lip6.fr&gt;
Signed-off-by: Robert Jarzmik &lt;robert.jarzmik@free.fr&gt;
Signed-off-by: Tomi Valkeinen &lt;tomi.valkeinen@ti.com&gt;
diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c
@@ -2249,6 +2249,8 @@ static int pxafb_probe(struct platform_device *dev)
 	ret = -ENOMEM;
 	pdata = dev_get_platdata(&dev->dev);
 	inf = devm_kmalloc(&dev->dev, sizeof(*inf), GFP_KERNEL);
+	if (!inf)
+		goto failed;
 
 	if (pdata) {
 		*inf = *pdata;
