[PATCH 1/1] f2fs: release locks before return in f2fs_ioc_gc_range()

[sunqiuyang]

From: Qiuyang Sun <sunqiuy...@huawei.com>

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 <sunqiuy...@huawei.com>
---
 fs/f2fs/file.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index c4c27e6..ee88058 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2059,8 +2059,10 @@ static int f2fs_ioc_gc_range(struct file *filp, unsigned 
long arg)
                return ret;
 
        end = range.start + range.len;
-       if (range.start < MAIN_BLKADDR(sbi) || end >= MAX_BLKADDR(sbi))
-               return -EINVAL;
+       if (range.start < MAIN_BLKADDR(sbi) || end >= MAX_BLKADDR(sbi)) {
+               ret = -EINVAL;
+               goto out;
+       }
 do_more:
        if (!range.sync) {
                if (!mutex_trylock(&sbi->gc_mutex)) {
-- 
2.5.0