[PATCH] erofs: clean up a loop

[Dan Carpenter]

It's easier to see what this loop is doing when the decrement is in
the normal place.

Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
---
 fs/erofs/zdata.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 601cfcb07c50..2691100eb231 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -419,8 +419,8 @@ static bool z_erofs_try_inplace_io(struct z_erofs_decompress_frontend *fe,
 {
 	struct z_erofs_pcluster *const pcl = fe->pcl;
 
-	while (fe->icur > 0) {
-		if (!cmpxchg(&pcl->compressed_bvecs[--fe->icur].page,
+	while (fe->icur--) {
+		if (!cmpxchg(&pcl->compressed_bvecs[fe->icur].page,
 			     NULL, bvec->page)) {
 			pcl->compressed_bvecs[fe->icur] = *bvec;
 			return true;
-- 
2.35.1