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authorRobert Richter <robert.richter@amd.com>2009-06-10 23:47:10 +0400
committerRobert Richter <robert.richter@amd.com>2009-06-10 23:47:10 +0400
commit0886751c5d8b19fcee2e65d34ae21c9111e652a9 (patch)
tree015e8c2b3d44d46e9e8fccd016340c51bc876d3b /fs/proc/task_mmu.c
parent7e4e0bd50e80df2fe5501f48f872448376cdd997 (diff)
parent07a2039b8eb0af4ff464efd3dfd95de5c02648c6 (diff)
downloadlinux-0886751c5d8b19fcee2e65d34ae21c9111e652a9.tar.xz
Merge commit 'v2.6.30' into oprofile/master
Diffstat (limited to 'fs/proc/task_mmu.c')
-rw-r--r--fs/proc/task_mmu.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 39e4ad4f59f4..6f61b7cc32e0 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -665,6 +665,10 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
goto out_task;
ret = 0;
+
+ if (!count)
+ goto out_task;
+
mm = get_task_mm(task);
if (!mm)
goto out_task;