From: Amol Lad <amol@verismonetworks.com>
Date: Fri, 8 Dec 2006 10:40:06 +0000 (-0800)
Subject: [PATCH] ioremap balanced with iounmap for drivers/video/retz3fb
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=027b53dd92e3d1a23c56d85e006a9bb5e63314f9;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PATCH] ioremap balanced with iounmap for drivers/video/retz3fb

ioremap must be balanced by an iounmap and failing to do so can result in a
memory leak.

Signed-off-by: Amol Lad <amol@verismonetworks.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/video/retz3fb.c b/drivers/video/retz3fb.c
index cf41ff177644..bc7ffc84e185 100644
--- a/drivers/video/retz3fb.c
+++ b/drivers/video/retz3fb.c
@@ -1423,8 +1423,10 @@ int __init retz3fb_init(void)
 
 		do_install_cmap(0, fb_info);
 
-		if (register_framebuffer(fb_info) < 0)
+		if (register_framebuffer(fb_info) < 0) {
+			iounmap(zinfo->base);
 			return -EINVAL;
+		}
 
 		printk(KERN_INFO "fb%d: %s frame buffer device, using %ldK of "
 		       "video memory\n", fb_info->node,