1 files changed, 4 insertions, 18 deletions

diff --git a/fs/proc/base.c b/fs/proc/base.c
index a11eb7196ec8..2a0f5ee9b623 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1083,15 +1083,9 @@ static ssize_t oom_adj_write(struct file *file, const char __user *buf,
                 goto out;
         }
 
-        task_lock(task);
-        if (!task->mm) {
-                err = -EINVAL;
-                goto err_task_lock;
-        }
-
         if (!lock_task_sighand(task, &flags)) {
                 err = -ESRCH;
-                goto err_task_lock;
+                goto err_put_task;
         }
 
         /*
@@ -1121,8 +1115,7 @@ static ssize_t oom_adj_write(struct file *file, const char __user *buf,
         trace_oom_score_adj_update(task);
 err_sighand:
         unlock_task_sighand(task, &flags);
-err_task_lock:
-        task_unlock(task);
+err_put_task:
         put_task_struct(task);
 out:
         return err < 0 ? err : count;
@@ -1186,15 +1179,9 @@ static ssize_t oom_score_adj_write(struct file *file, const char __user *buf,
                 goto out;
         }
 
-        task_lock(task);
-        if (!task->mm) {
-                err = -EINVAL;
-                goto err_task_lock;
-        }
-
         if (!lock_task_sighand(task, &flags)) {
                 err = -ESRCH;
-                goto err_task_lock;
+                goto err_put_task;
         }
 
         if ((short)oom_score_adj < task->signal->oom_score_adj_min &&
@@ -1210,8 +1197,7 @@ static ssize_t oom_score_adj_write(struct file *file, const char __user *buf,
 
 err_sighand:
         unlock_task_sighand(task, &flags);
-err_task_lock:
-        task_unlock(task);
+err_put_task:
         put_task_struct(task);
 out:
         return err < 0 ? err : count;