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authorLuís Henriques <lhenriques@suse.de>2023-09-28 18:23:41 +0300
committerChristian Brauner <brauner@kernel.org>2023-10-19 12:02:48 +0300
commit6036c5f1317526890925576f0efcbc427a32a2ae (patch)
tree92aa6e21c454e5acf60f7eb83eccf11a0d96bfd3 /fs/namei.c
parent85fadf89e5708d74c4923e9ceeca4b9df0e000bb (diff)
downloadlinux-6036c5f1317526890925576f0efcbc427a32a2ae.tar.xz
fs: simplify misleading code to remove ambiguity regarding ihold()/iput()
Because 'inode' is being initialised before checking if 'dentry' is negative it looks like an extra iput() on 'inode' may happen since the ihold() is done only if the dentry is *not* negative. In reality this doesn't happen because d_is_negative() is never true if ->d_inode is NULL. This patch only makes the code easier to understand, as I was initially mislead by it. Signed-off-by: Luís Henriques <lhenriques@suse.de> Link: https://lore.kernel.org/r/20230928152341.303-1-lhenriques@suse.de Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/namei.c b/fs/namei.c
index 94b27370f468..c36ff6f8195a 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -4367,11 +4367,9 @@ retry_deleg:
if (!IS_ERR(dentry)) {
/* Why not before? Because we want correct error value */
- if (last.name[last.len])
+ if (last.name[last.len] || d_is_negative(dentry))
goto slashes;
inode = dentry->d_inode;
- if (d_is_negative(dentry))
- goto slashes;
ihold(inode);
error = security_path_unlink(&path, dentry);
if (error)