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68328fb: fix cmap memory leaks 

- fix cmap leak in removal path

- fix cmap leak when register_framebuffer fails

- check return value of fb_alloc_cmap

Signed-off-by: Andres Salomon <dilinger@debian.org>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andres Salomon 2009-03-31 15:25:28 -07:00 committed by Linus Torvalds
parent 327fc8752a
commit e98d9b407c
1 changed files with 4 additions and 1 deletions
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5
drivers/video/68328fb.c
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@ -471,9 +471,11 @@ int __init mc68x328fb_init(void)
fb_info.pseudo_palette = &mc68x328fb_pseudo_palette;
fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
fb_alloc_cmap(&fb_info.cmap, 256, 0);
if (fb_alloc_cmap(&fb_info.cmap, 256, 0))
return -ENOMEM;
if (register_framebuffer(&fb_info) < 0) {
fb_dealloc_cmap(&fb_info.cmap);
return -EINVAL;
}
@ -494,6 +496,7 @@ module_init(mc68x328fb_init);
static void __exit mc68x328fb_cleanup(void)
{
unregister_framebuffer(&fb_info);
fb_dealloc_cmap(&fb_info.cmap);
}
module_exit(mc68x328fb_cleanup);