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authorMateusz Guzik <mguzik@redhat.com>2016-02-04 04:56:30 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2016-02-20 08:15:51 +0300
commit0e9a7da51b028aee7a72c95096c99fe5ea2a01f0 (patch)
tree9ea3ec020202ebc2c38f581f410f201abad7db28 /fs/xattr.c
parent2feb55f89096b22e2de066e411a3263647211987 (diff)
downloadlinux-0e9a7da51b028aee7a72c95096c99fe5ea2a01f0.tar.xz
xattr handlers: plug a lock leak in simple_xattr_list
The code could leak xattrs->lock on error. Problem introduced with 786534b92f3ce68f4 "tmpfs: listxattr should include POSIX ACL xattrs". Signed-off-by: Mateusz Guzik <mguzik@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/xattr.c')
-rw-r--r--fs/xattr.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/xattr.c b/fs/xattr.c
index 07d0e47f6a7f..4861322e28e8 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -940,7 +940,7 @@ ssize_t simple_xattr_list(struct inode *inode, struct simple_xattrs *xattrs,
bool trusted = capable(CAP_SYS_ADMIN);
struct simple_xattr *xattr;
ssize_t remaining_size = size;
- int err;
+ int err = 0;
#ifdef CONFIG_FS_POSIX_ACL
if (inode->i_acl) {
@@ -965,11 +965,11 @@ ssize_t simple_xattr_list(struct inode *inode, struct simple_xattrs *xattrs,
err = xattr_list_one(&buffer, &remaining_size, xattr->name);
if (err)
- return err;
+ break;
}
spin_unlock(&xattrs->lock);
- return size - remaining_size;
+ return err ? err : size - remaining_size;
}
/*