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authorTakashi Iwai <tiwai@suse.de>2009-05-12 11:57:09 +0200
committerTakashi Iwai <tiwai@suse.de>2009-05-12 11:57:09 +0200
commitddc4097b77bbb227851a44287acb2fb8a9896cc1 (patch)
tree319d098879bed7c45543d983de8becd509701b22 /fs/proc/base.c
parentbec4c99e8637b5b8bd4b0513eacb51da25885e3b (diff)
parentae31c1fbdbb18d917b0a1139497c2dbd35886989 (diff)
Merge branch 'topic/drvdata-fix' into topic/asoc
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 aa763ab0077..fb45615943c 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);
}