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f2fs: release locks before return in f2fs_ioc_gc_range()

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Currently, we will leave the kernel with locks still held when the gc_range
is invalid. This patch fixes the bug.

Signed-off-by: Qiuyang Sun <sunqiuyang@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Qiuyang Sun 2018-03-13 19:42:50 +08:00 committed by Jaegeuk Kim
parent bb1105e479
commit da5ce874f8
1 changed files with 4 additions and 2 deletions
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6
fs/f2fs/file.c
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@ -2059,8 +2059,10 @@ static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
return ret; return ret;
end = range.start + range.len; end = range.start + range.len;
if (range.start < MAIN_BLKADDR(sbi) || end >= MAX_BLKADDR(sbi)) if (range.start < MAIN_BLKADDR(sbi) || end >= MAX_BLKADDR(sbi)) {
return -EINVAL; ret = -EINVAL;
goto out;
}
do_more: do_more:
if (!range.sync) { if (!range.sync) {
if (!mutex_trylock(&sbi->gc_mutex)) { if (!mutex_trylock(&sbi->gc_mutex)) {