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Commit 4dcd19bf authored by Arvind Yadav's avatar Arvind Yadav Committed by Bartlomiej Zolnierkiewicz
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video: fbdev: cobalt_lcdfb: Handle return NULL error from devm_ioremap 



Here, If devm_ioremap will fail. It will return NULL.
Kernel can run into a NULL-pointer dereference.
This error check will avoid NULL pointer dereference.

Signed-off-by: default avatarArvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: default avatarYoichi Yuasa <yuasa@linux-mips.org>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
parent 04f6152d

drivers/video/fbdev/cobalt_lcdfb.c

+5 −0
Original line number Diff line number Diff line
@@ -308,6 +308,11 @@ static int cobalt_lcdfb_probe(struct platform_device *dev) 
	info->screen_size = resource_size(res);

	info->screen_base = devm_ioremap(&dev->dev, res->start,

					 info->screen_size);

	if (!info->screen_base) {

		framebuffer_release(info);

		return -ENOMEM;

	}



	info->fbops = &cobalt_lcd_fbops;

	info->fix = cobalt_lcdfb_fix;

	info->fix.smem_start = res->start;