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amba-clcd: fix cmap memory leaks 

- fix cmap leak in removal path

- fix cmap leak when register_framebuffer fails

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 15:25:29 -07:00 committed by Linus Torvalds
parent e98d9b407c
commit 909baf0092
1 changed files with 7 additions and 1 deletions
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8
drivers/video/amba-clcd.c
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@ -408,7 +408,9 @@ static int clcdfb_register(struct clcd_fb *fb)
/*
* Allocate colourmap.
*/
fb_alloc_cmap(&fb->fb.cmap, 256, 0);
ret = fb_alloc_cmap(&fb->fb.cmap, 256, 0);
if (ret)
goto unmap;
/*
* Ensure interrupts are disabled.
@ -426,6 +428,8 @@ static int clcdfb_register(struct clcd_fb *fb)
printk(KERN_ERR "CLCD: cannot register framebuffer (%d)\n", ret);
fb_dealloc_cmap(&fb->fb.cmap);
unmap:
iounmap(fb->regs);
free_clk:
clk_put(fb->clk);
@ -485,6 +489,8 @@ static int clcdfb_remove(struct amba_device *dev)
clcdfb_disable(fb);
unregister_framebuffer(&fb->fb);
if (fb->fb.cmap.len)
fb_dealloc_cmap(&fb->fb.cmap);
iounmap(fb->regs);
clk_put(fb->clk);