[JFFS2] Add missing call to posix_acl_release
Author: Julia Lawall <julia@diku.dk>
posix_acl_clone does a memory allocation and sets a reference count, so
posix_acl_release is needed afterwards to free it.
The problem was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)
//
@@
type T;
identifier E;
expression E1, E2;
int ret;
statement S;
@@
T E;
<+...
(
E = \(posix_acl_clone\|posix_acl_alloc\|posix_acl_dup\)(...);
if (E == NULL) S
|
if ((E = \(posix_acl_clone\|posix_acl_alloc\|posix_acl_dup\)(...)) == NULL) S
)
... when != E2 = E
when strict
(
posix_acl_release(E);
|
E1 = E;
|
+ posix_acl_release(E);
return;
|
+ posix_acl_release(E);
return ret;
)
...+>
//
Signed-off-by: Julia Lawall
Acked-by: KaiGai Kohei
Signed-off-by: David Woodhouse
---
fs/jffs2/acl.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index 993ddfc..4c80404 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -345,8 +345,10 @@ int jffs2_init_acl_pre(struct inode *dir_i, struct inode *inode, int *i_mode)
if (!clone)
return -ENOMEM;
rc = posix_acl_create_masq(clone, (mode_t *)i_mode);
- if (rc < 0)
+ if (rc < 0) {
+ posix_acl_release(clone);
return rc;
+ }
if (rc > 0)
jffs2_iset_acl(inode, &f->i_acl_access, clone); |
---
fs/jffs2/acl.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index 993ddfc..4c80404 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -345,8 +345,10 @@ int jffs2_init_acl_pre(struct inode *dir_i, struct inode *inode, int *i_mode)
if (!clone)
return -ENOMEM;
rc = posix_acl_create_masq(clone, (mode_t *)i_mode);
- if (rc < 0)
+ if (rc < 0) {
+ posix_acl_release(clone);
return rc;
+ }
if (rc > 0)
jffs2_iset_acl(inode, &f->i_acl_access, clone);