From: Anton Vasilyev <vasilyev@ispras.ru>
Date: Tue, 24 Jul 2018 17:11:27 +0000 (+0200)
Subject: video: goldfishfb: fix memory leak on driver remove
X-Git-Tag: v4.19-rc1~37^2~33
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5958fde72d04e7b8c6de3669d1f794a90997e3eb;p=thirdparty%2Fkernel%2Flinux.git

video: goldfishfb: fix memory leak on driver remove

goldfish_fb_probe() allocates memory for fb, but goldfish_fb_remove() does
not have deallocation of fb, which leads to memory leak on probe/remove.

The patch adds deallocation into goldfish_fb_remove().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Cc: Aleksandar Markovic <aleksandar.markovic@mips.com>
Cc: Miodrag Dinic <miodrag.dinic@mips.com>
Cc: Goran Ferenc <goran.ferenc@mips.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---

diff --git a/drivers/video/fbdev/goldfishfb.c b/drivers/video/fbdev/goldfishfb.c
index 3a9e5f1b758e8..4377e34426387 100644
--- a/drivers/video/fbdev/goldfishfb.c
+++ b/drivers/video/fbdev/goldfishfb.c
@@ -304,6 +304,7 @@ static int goldfish_fb_remove(struct platform_device *pdev)
 	dma_free_coherent(&pdev->dev, framesize, (void *)fb->fb.screen_base,
 						fb->fb.fix.smem_start);
 	iounmap(fb->reg_base);
+	kfree(fb);
 	return 0;
 }