[PATCH v2 6.14.y] btrfs: fix the inode leak in btrfs_iget()

[Penglei Jiang <superman.xpt@gmail.com>]

The commit 48c1d1bb525b1c44b8bdc8e7ec5629cb6c2b9fc4 fails to compile
in kernel version 6.14.

Version 6.14:
    struct inode *btrfs_iget(u64 ino, struct btrfs_root *root)
    {
            struct inode *inode;
            ~~~~~~~~~~~~~~
            ...
            inode = btrfs_iget_locked(ino, root);
            ...
    }

Version 6.15:
    struct btrfs_inode *btrfs_iget(u64 ino, struct btrfs_root *root)
    {
            struct btrfs_inode *inode;
            ~~~~~~~~~~~~~~~~~~~~
            ...
            inode = btrfs_iget_locked(ino, root);
            ...
    }

In kernel version 6.14, the function btrfs_iget_locked() returns a
struct inode *, so the patch code adjusts to use iget_failed(inode).

Reported-by: Penglei Jiang <superman.xpt@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/20250421102425.44431-1-superman.xpt@gmail.com/
Fixes: 7c855e16ab72 ("btrfs: remove conditional path allocation in btrfs_read_locked_inode()")
Signed-off-by: Penglei Jiang <superman.xpt@gmail.com>
---
 fs/btrfs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ad7009d336fa..d2edb2201e3a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5660,7 +5660,7 @@ struct inode *btrfs_iget(u64 ino, struct btrfs_root *root)
 
 	path = btrfs_alloc_path();
 	if (!path) {
-		iget_failed(&inode->vfs_inode);
+		iget_failed(inode);
 		return ERR_PTR(-ENOMEM);
 	}
 
-- 
2.17.1