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authorAl Viro <viro@zeniv.linux.org.uk>2011-02-15 22:22:54 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2011-03-23 16:36:50 -0400
commitec6fd8a4355cda81cd9f06bebc048e83eb514ac7 (patch)
tree828c3f2e1b474cc0ec9768d5dc19cfa2c086898f /fs/proc/task_nommu.c
parentca6b0bf0e086513b9ee5efc0aa5770ecb57778af (diff)
report errors in /proc/*/*map* sanely
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/proc/task_nommu.c')
-rw-r--r--fs/proc/task_nommu.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index b535d3e5d5f..980de547c07 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -199,13 +199,13 @@ static void *m_start(struct seq_file *m, loff_t *pos)
/* pin the task and mm whilst we play with them */
priv->task = get_pid_task(priv->pid, PIDTYPE_PID);
if (!priv->task)
- return NULL;
+ return ERR_PTR(-ESRCH);
mm = mm_for_maps(priv->task);
- if (!mm) {
+ if (!mm || IS_ERR(mm)) {
put_task_struct(priv->task);
priv->task = NULL;
- return NULL;
+ return mm;
}
down_read(&mm->mmap_sem);