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authorTakashi Iwai <tiwai@suse.de>2009-05-29 11:46:10 +0200
committerTakashi Iwai <tiwai@suse.de>2009-05-29 11:46:10 +0200
commite93721a70263afefbac781f575bfe851c6f95d84 (patch)
treeab359f12a0688802aa99339bae82c51763dae9f6 /fs/proc/base.c
parentae1ec5e1e97f67d41e641a73380129e5905e41cc (diff)
parentc87d9732004b3f8fd82d729f12ccfb96c0df279e (diff)
Merge branch 'fix/pcm-jiffies-check' into topic/pcm-jiffies-check
Diffstat (limited to 'fs/proc/base.c')
-rw-r--r--fs/proc/base.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index aa763ab00777..fb45615943c2 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -322,7 +322,10 @@ static int proc_pid_wchan(struct task_struct *task, char *buffer)
wchan = get_wchan(task);
if (lookup_symbol_name(wchan, symname) < 0)
- return sprintf(buffer, "%lu", wchan);
+ if (!ptrace_may_access(task, PTRACE_MODE_READ))
+ return 0;
+ else
+ return sprintf(buffer, "%lu", wchan);
else
return sprintf(buffer, "%s", symname);
}