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PCI hotplug: check ioremap() return value in ibmphp_ebda.c

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check ioremap() return value.

Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Andrew Morton 2010-02-02 14:45:54 -08:00 committed by Jesse Barnes
parent 939fdc6735
commit ba02b242bb
1 changed files with 2 additions and 0 deletions
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drivers/pci/hotplug/ibmphp_ebda.c
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@ -261,6 +261,8 @@ int __init ibmphp_access_ebda (void)
debug ("returned ebda segment: %x\n", ebda_seg);
io_mem = ioremap(ebda_seg<<4, 1);
if (!io_mem)
return -ENOMEM;
ebda_sz = readb(io_mem);
iounmap(io_mem);
debug("ebda size: %d(KiB)\n", ebda_sz);