From: Cesar Eduardo Barros <cesarb@cesarb.net>
Date: Tue, 22 Mar 2011 23:33:18 +0000 (-0700)
Subject: sys_swapon: simplify error return from swap_info allocation
X-Git-Tag: v2.6.39-rc1~309
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=2542e5134d2c19a9e6a4e641ef78cac6bccebd9b;p=~emulex%2Finfiniband.git

sys_swapon: simplify error return from swap_info allocation

At this point in sys_swapon, there is nothing to free. Return directly
instead of jumping to the cleanup block at the end of the function.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Tested-by: Eric B Munson <emunson@mgebm.net>
Acked-by: Eric B Munson <emunson@mgebm.net>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 6d1c3c67ae6..4d457d699c1 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1918,10 +1918,8 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
 		return -EPERM;
 
 	p = alloc_swap_info();
-	if (IS_ERR(p)) {
-		error = PTR_ERR(p);
-		goto out;
-	}
+	if (IS_ERR(p))
+		return PTR_ERR(p);
 
 	name = getname(specialfile);
 	error = PTR_ERR(name);