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[PATCH] ioremap balanced with iounmap for drivers/video/macfb 

ioremap must be balanced by an iounmap and failing to do so can result in a
memory leak.

Signed-off-by: Amol Lad <amol@verismonetworks.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Amol Lad 2006-12-08 02:40:09 -08:00 committed by Linus Torvalds
parent f190017b88
commit 164a765b98
1 changed files with 20 additions and 0 deletions
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20
drivers/video/macfb.c
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@ -608,6 +608,22 @@ void __init macfb_setup(char *options)
}
}
static void __init iounmap_macfb(void)
{
if (valkyrie_cmap_regs)
iounmap(valkyrie_cmap_regs);
if (dafb_cmap_regs)
iounmap(dafb_cmap_regs);
if (v8_brazil_cmap_regs)
iounmap(v8_brazil_cmap_regs);
if (rbv_cmap_regs)
iounmap(rbv_cmap_regs);
if (civic_cmap_regs)
iounmap(civic_cmap_regs);
if (csc_cmap_regs)
iounmap(csc_cmap_regs);
}
static int __init macfb_init(void)
{
int video_cmap_len, video_is_nubus = 0;
@ -962,6 +978,10 @@ static int __init macfb_init(void)
if (!err)
printk("fb%d: %s frame buffer device\n",
fb_info.node, fb_info.fix.id);
else {
iounmap(fb_info.screen_base);
iounmap_macfb();
}
return err;
}