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authorMichal Marek <mmarek@suse.cz>2010-12-01 13:13:56 +0100
committerMichal Marek <mmarek@suse.cz>2010-12-01 13:13:56 +0100
commit307991055b0ce65d53dc1eb501c456c10eb36360 (patch)
tree71bb9263dc71344e5d7b97ca6d5cf223f1f1a856 /drivers/pci/hotplug
parent1198c6d45a1ef5f4f7fdfbf33ef7d270493ec575 (diff)
parent9b4320b77bab4031649c484da1c595f39c2e43cd (diff)
downloadlinux-next-307991055b0ce65d53dc1eb501c456c10eb36360.tar.gz
linux-next-307991055b0ce65d53dc1eb501c456c10eb36360.zip
Merge branch 'kconfig_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-next into kbuild/rc-fixes
Diffstat (limited to 'drivers/pci/hotplug')
-rw-r--r--drivers/pci/hotplug/ibmphp_ebda.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/ibmphp_ebda.c b/drivers/pci/hotplug/ibmphp_ebda.c
index 5becbdee4027..2850e64dedae 100644
--- a/drivers/pci/hotplug/ibmphp_ebda.c
+++ b/drivers/pci/hotplug/ibmphp_ebda.c
@@ -276,6 +276,12 @@ int __init ibmphp_access_ebda (void)
for (;;) {
offset = next_offset;
+
+ /* Make sure what we read is still in the mapped section */
+ if (WARN(offset > (ebda_sz * 1024 - 4),
+ "ibmphp_ebda: next read is beyond ebda_sz\n"))
+ break;
+
next_offset = readw (io_mem + offset); /* offset of next blk */
offset += 2;