From 35bfbf70b2928ce5fbc117a410915eeee457202b Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Thu, 9 Nov 2017 18:09:31 +0100 Subject: [PATCH] sm501fb: unregister framebuffer only if registered 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, unregister the framebuffer only if it was registered. Signed-off-by: Sudip Mukherjee Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/video/fbdev/sm501fb.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/video/fbdev/sm501fb.c b/drivers/video/fbdev/sm501fb.c index 381475fa137b..577a48339bab 100644 --- a/drivers/video/fbdev/sm501fb.c +++ b/drivers/video/fbdev/sm501fb.c @@ -2079,8 +2079,10 @@ static int sm501fb_remove(struct platform_device *pdev) sm501_free_init_fb(info, HEAD_CRT); sm501_free_init_fb(info, HEAD_PANEL); - unregister_framebuffer(fbinfo_crt); - unregister_framebuffer(fbinfo_pnl); + if (fbinfo_crt) + unregister_framebuffer(fbinfo_crt); + if (fbinfo_pnl) + unregister_framebuffer(fbinfo_pnl); sm501fb_stop(info); kfree(info);