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authorIngo Molnar <mingo@elte.hu>2010-04-23 11:10:28 +0200
committerIngo Molnar <mingo@elte.hu>2010-04-23 11:10:30 +0200
commit70bce3ba77540ebe77b8c0e1ac38d281a23fbb5e (patch)
tree34b09a49228f0949ff49dce66a433b0dfd83a2dc /drivers/vhost/vhost.c
parent6eca8cc35b50af1037bc919106dd6dd332c959c2 (diff)
parentd5a30458a90597915977f06e79406b664a41b8ac (diff)
Merge branch 'linus' into perf/core
Merge reason: merge the latest fixes, update to latest -rc. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/vhost/vhost.c')
-rw-r--r--drivers/vhost/vhost.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 5be11c99e18..e69d238c5af 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -236,6 +236,10 @@ static int vq_memory_access_ok(void __user *log_base, struct vhost_memory *mem,
int log_all)
{
int i;
+
+ if (!mem)
+ return 0;
+
for (i = 0; i < mem->nregions; ++i) {
struct vhost_memory_region *m = mem->regions + i;
unsigned long a = m->userspace_addr;