linux-kernel - [PATCH next] fuse: Uninitialized variable in fuse_epoch

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Message-ID: <aSBqUPeT2JCLDsGk@stanley.mountain>
Date: Fri, 21 Nov 2025 16:34:08 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Luis Henriques <luis@...lia.com>
Cc: Miklos Szeredi <miklos@...redi.hu>, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH next] fuse: Uninitialized variable in fuse_epoch_work()

The "fm" pointer is either valid or uninitialized so checking for NULL
doesn't work.  Check the "inode" pointer instead.

Fixes: 64becd224ff9 ("fuse: new work queue to invalidate dentries from old epochs")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 fs/fuse/dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 761f4a14dc95..ec5042b47abb 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -201,7 +201,7 @@ void fuse_epoch_work(struct work_struct *work)
 	inode = fuse_ilookup(fc, FUSE_ROOT_ID, &fm);
 	iput(inode);
 
-	if (fm) {
+	if (inode) {
 		/* Remove all possible active references to cached inodes */
 		shrink_dcache_sb(fm->sb);
 	} else
-- 
2.51.0