From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: Thu, 9 Nov 2017 17:09:31 +0000 (+0100)
Subject: sm501fb: deallocate colormap only if allocated
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d9b1fe651606c8da040adca6edf37b853dfd9514;p=linux.git

sm501fb: deallocate colormap only if allocated

There are cases when panel and crt both are not defined and only one of
them is defined and initialized. In such cases, while removing the
device deallocate the colormap only if that particular fb is defined.

Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---

diff --git a/drivers/video/fbdev/sm501fb.c b/drivers/video/fbdev/sm501fb.c
index 076dd2711630e..381475fa137b5 100644
--- a/drivers/video/fbdev/sm501fb.c
+++ b/drivers/video/fbdev/sm501fb.c
@@ -1889,6 +1889,9 @@ static void sm501_free_init_fb(struct sm501fb_info *info,
 {
 	struct fb_info *fbi = info->fb[head];
 
+	if (!fbi)
+		return;
+
 	fb_dealloc_cmap(&fbi->cmap);
 }