[PATCHv2 06/24] sys_swapon: simplify error flow in alloc_swap_info

From: Cesar Eduardo Barros
Date: Sat Mar 05 2011 - 11:54:12 EST


Since there is no cleanup to do, there is no reason to jump to a label.
Return directly instead.

Signed-off-by: Cesar Eduardo Barros <cesarb@xxxxxxxxxx>
Tested-by: Eric B Munson <emunson@xxxxxxxxx>
Acked-by: Eric B Munson <emunson@xxxxxxxxx>
---
mm/swapfile.c | 7 +------
1 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 8969b37..c97dc4b 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1848,7 +1848,6 @@ static struct swap_info_struct *alloc_swap_info(void)
{
struct swap_info_struct *p;
unsigned int type;
- int error;

p = kzalloc(sizeof(*p), GFP_KERNEL);
if (!p)
@@ -1859,11 +1858,10 @@ static struct swap_info_struct *alloc_swap_info(void)
if (!(swap_info[type]->flags & SWP_USED))
break;
}
- error = -EPERM;
if (type >= MAX_SWAPFILES) {
spin_unlock(&swap_lock);
kfree(p);
- goto out;
+ return ERR_PTR(-EPERM);
}
if (type >= nr_swapfiles) {
p->type = type;
@@ -1889,9 +1887,6 @@ static struct swap_info_struct *alloc_swap_info(void)
spin_unlock(&swap_lock);

return p;
-
-out:
- return ERR_PTR(error);
}

SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
--
1.7.4

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