fork: unshare: remove dead code

If new_nsproxy is set we will always call switch_task_namespaces and
then set new_nsproxy back to NULL so the reassignment and fall through
check are redundant

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/kernel/fork.c b/kernel/fork.c
index 8f62b2a0f120362f80c758a35f5083d73f6dac1a..8d932b1c9056af738e2903bf813bcbd035ed3892 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1861,10 +1861,8 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
                        exit_sem(current);
                }
 
-               if (new_nsproxy) {
+               if (new_nsproxy)
                        switch_task_namespaces(current, new_nsproxy);
-                       new_nsproxy = NULL;
-               }
 
                task_lock(current);
 
@@ -1894,9 +1892,6 @@ SYSCALL_DEFINE1(unshare, unsigned long, unshare_flags)
                }
        }
 
-       if (new_nsproxy)
-               put_nsproxy(new_nsproxy);
-
 bad_unshare_cleanup_cred:
        if (new_cred)
                put_cred(new_cred);