From: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Date: Sat, 26 Oct 2024 06:40:45 +0000 (+0200)
Subject: fs: ext4: free directory node in ext4fs_exists()
X-Git-Url: http://git.dujemihanovic.xyz/img/static/git-favicon.png?a=commitdiff_plain;h=2d94480c025faf11d2e1010f5437e72d8e934127;p=u-boot.git

fs: ext4: free directory node in ext4fs_exists()

The directory retrieved in ext4fs_exists() should be freed to avoid a
memory leak.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
---

diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c
index 15587e92e3..21714149ef 100644
--- a/fs/ext4/ext4fs.c
+++ b/fs/ext4/ext4fs.c
@@ -209,12 +209,17 @@ int ext4fs_exists(const char *filename)
 {
 	struct ext2fs_node *dirnode = NULL;
 	int filetype;
+	int ret;
 
 	if (!filename)
 		return 0;
 
-	return ext4fs_find_file1(filename, &ext4fs_root->diropen, &dirnode,
-				 &filetype);
+	ret = ext4fs_find_file1(filename, &ext4fs_root->diropen, &dirnode,
+				&filetype);
+	if (dirnode)
+		ext4fs_free_node(dirnode, &ext4fs_root->diropen);
+
+	return ret;
 }
 
 int ext4fs_size(const char *filename, loff_t *size)