aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/pci/hotplug/ibmphp_ebda.c
diff options
context:
space:
mode:
authorGrant Likely <grant.likely@secretlab.ca>2010-12-23 00:41:14 -0700
committerGrant Likely <grant.likely@secretlab.ca>2010-12-23 00:41:14 -0700
commitcfb13c5db08c90311a5defdde9a0328ee788cca5 (patch)
tree842cb60d1d19b99e550fdbc653723e4b13e51ee5 /drivers/pci/hotplug/ibmphp_ebda.c
parent4b6ba8aacbb3185703b797286547d0f8f3859b02 (diff)
parent90a8a73c06cc32b609a880d48449d7083327e11a (diff)
downloadkernel_replicant_linux-cfb13c5db08c90311a5defdde9a0328ee788cca5.tar.gz
kernel_replicant_linux-cfb13c5db08c90311a5defdde9a0328ee788cca5.tar.bz2
kernel_replicant_linux-cfb13c5db08c90311a5defdde9a0328ee788cca5.zip
Merge commit 'v2.6.37-rc7' into devicetree/next
Diffstat (limited to 'drivers/pci/hotplug/ibmphp_ebda.c')
-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;