[PATCH] futex: remove duplicate code

This patch cleans up the error path of futex_fd() by removing duplicate
code.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/kernel/futex.c b/kernel/futex.c
index 07ba87d..ca05fe6 100644 (file)
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -786,23 +786,17 @@ static int futex_fd(unsigned long uaddr, int signal)
        filp->f_mapping = filp->f_dentry->d_inode->i_mapping;
 
        if (signal) {
-               int err;
                err = f_setown(filp, current->pid, 1);
                if (err < 0) {
-                       put_unused_fd(ret);
-                       put_filp(filp);
-                       ret = err;
-                       goto out;
+                       goto error;
                }
                filp->f_owner.signum = signal;
        }
 
        q = kmalloc(sizeof(*q), GFP_KERNEL);
        if (!q) {
-               put_unused_fd(ret);
-               put_filp(filp);
-               ret = -ENOMEM;
-               goto out;
+               err = -ENOMEM;
+               goto error;
        }
 
        down_read(&current->mm->mmap_sem);
@@ -810,10 +804,8 @@ static int futex_fd(unsigned long uaddr, int signal)
 
        if (unlikely(err != 0)) {
                up_read(&current->mm->mmap_sem);
-               put_unused_fd(ret);
-               put_filp(filp);
                kfree(q);
-               return err;
+               goto error;
        }
 
        /*
@@ -829,6 +821,11 @@ static int futex_fd(unsigned long uaddr, int signal)
        fd_install(ret, filp);
 out:
        return ret;
+error:
+       put_unused_fd(ret);
+       put_filp(filp);
+       ret = err;
+       goto out;
 }
 
 long do_futex(unsigned long uaddr, int op, int val, unsigned long timeout,