linux-kernel - [PATCH] 9p: remove shadow variable retval in v9fs_dir

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Date:   Sat, 28 Jan 2023 07:25:49 -0800
From:   Tom Rix <trix@...hat.com>
To:     ericvh@...il.com, lucho@...kov.net, asmadeus@...ewreck.org,
        linux_oss@...debyte.com
Cc:     v9fs-developer@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
        Tom Rix <trix@...hat.com>
Subject: [PATCH] 9p: remove shadow variable retval in v9fs_dir_release()

cppcheck reports
fs/9p/vfs_dir.c:219:8: style: Local variable 'retval' shadows outer variable [shadowVariable]
   int retval = file_write_and_wait_range(filp, 0, -1);
       ^

Having another retval decl is not needed, if the initialized 0 is overwritten by a non 0
value by the call to file_write_and_wait_ranget(), the function returns early.

Fixes: b67c64fb0143 ("fs/9p: Consolidate file operations and add readahead and writeback")
Signed-off-by: Tom Rix <trix@...hat.com>
---
 fs/9p/vfs_dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 1fc07bb86e6f..a5783afdf31a 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -216,7 +216,7 @@ int v9fs_dir_release(struct inode *inode, struct file *filp)
 		 inode, filp, fid ? fid->fid : -1);
 	if (fid) {
 		if ((fid->qid.type == P9_QTFILE) && (filp->f_mode & FMODE_WRITE)) {
-			int retval = file_write_and_wait_range(filp, 0, -1);
+			retval = file_write_and_wait_range(filp, 0, -1);
 
 			if (retval != 0) {
 				p9_debug(P9_DEBUG_ERROR,
-- 
2.26.3