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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 <sudipm.mukherjee@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
This commit is contained in:
Sudip Mukherjee 2017-11-09 18:09:31 +01:00 committed by Bartlomiej Zolnierkiewicz
parent d9b1fe6516
commit 35bfbf70b2
1 changed files with 4 additions and 2 deletions
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6
drivers/video/fbdev/sm501fb.c
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@ -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);