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| author | Cesar Eduardo Barros <cesarb@cesarb.net> | 2011-03-22 16:33:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-22 17:44:08 -0700 |
| commit | bdb8e3f68320f897de3f3a4c363fe2802037f21d (patch) | |
| tree | 0eeb4907e05daa418ec8e98c2492b4177ab67e3c /mm/swapfile.c | |
| parent | 915d4d7bc0d719f2f0907273c01967d38751c625 (diff) | |
| download | linux-bdb8e3f68320f897de3f3a4c363fe2802037f21d.tar.gz linux-bdb8e3f68320f897de3f3a4c363fe2802037f21d.tar.bz2 linux-bdb8e3f68320f897de3f3a4c363fe2802037f21d.zip | |
sys_swapon: simplify error flow in setup_swap_map_and_extents()
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@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>
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index a0f39f9dc5a5..be0d0a28690e 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -1998,7 +1998,6 @@ static int setup_swap_map_and_extents(struct swap_info_struct *p, sector_t *span) { int i; - int error; unsigned int nr_good_pages; int nr_extents; @@ -2006,10 +2005,8 @@ static int setup_swap_map_and_extents(struct swap_info_struct *p, for (i = 0; i < swap_header->info.nr_badpages; i++) { unsigned int page_nr = swap_header->info.badpages[i]; - if (page_nr == 0 || page_nr > swap_header->info.last_page) { - error = -EINVAL; - goto bad_swap; - } + if (page_nr == 0 || page_nr > swap_header->info.last_page) + return -EINVAL; if (page_nr < maxpages) { swap_map[page_nr] = SWAP_MAP_BAD; nr_good_pages--; @@ -2021,22 +2018,16 @@ static int setup_swap_map_and_extents(struct swap_info_struct *p, p->max = maxpages; p->pages = nr_good_pages; nr_extents = setup_swap_extents(p, span); - if (nr_extents < 0) { - error = nr_extents; - goto bad_swap; - } + if (nr_extents < 0) + return nr_extents; nr_good_pages = p->pages; } if (!nr_good_pages) { printk(KERN_WARNING "Empty swap-file\n"); - error = -EINVAL; - goto bad_swap; + return -EINVAL; } return nr_extents; - -bad_swap: - return error; } SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) |