X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=fs%2Freiserfs%2Fxattr_acl.c;h=b7e4fa4539deeb9155e97affef199cbacb729f70;hb=d4c3d19d0c10701459f16c022ea23eff5e127747;hp=a47ac9aac8b2b743c8768091abacdeff0e14ee2c;hpb=4fd5f8267dd37aaebadfabe71d9c808821eea05a;p=~andy%2Flinux

diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index a47ac9aac8b..b7e4fa4539d 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -1,3 +1,4 @@
+#include <linux/capability.h>
 #include <linux/fs.h>
 #include <linux/posix_acl.h>
 #include <linux/reiserfs_fs.h>
@@ -20,7 +21,7 @@ xattr_set_acl(struct inode *inode, int type, const void *value, size_t size)
 
 	if (!reiserfs_posixacl(inode->i_sb))
 		return -EOPNOTSUPP;
-	if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+	if (!is_owner_or_cap(inode))
 		return -EPERM;
 
 	if (value) {
@@ -134,7 +135,7 @@ static void *posix_acl_to_disk(const struct posix_acl *acl, size_t * size)
 	int n;
 
 	*size = reiserfs_acl_size(acl->a_count);
-	ext_acl = (reiserfs_acl_header *) kmalloc(sizeof(reiserfs_acl_header) +
+	ext_acl = kmalloc(sizeof(reiserfs_acl_header) +
 						  acl->a_count *
 						  sizeof(reiserfs_acl_entry),
 						  GFP_NOFS);
@@ -174,14 +175,14 @@ static void *posix_acl_to_disk(const struct posix_acl *acl, size_t * size)
 /*
  * Inode operation get_posix_acl().
  *
- * inode->i_sem: down
+ * inode->i_mutex: down
  * BKL held [before 2.5.x]
  */
 struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
 {
 	char *name, *value;
 	struct posix_acl *acl, **p_acl;
-	size_t size;
+	int size;
 	int retval;
 	struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
 
@@ -205,7 +206,7 @@ struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
 		return posix_acl_dup(*p_acl);
 
 	size = reiserfs_xattr_get(inode, name, NULL, 0);
-	if ((int)size < 0) {
+	if (size < 0) {
 		if (size == -ENODATA || size == -ENOSYS) {
 			*p_acl = ERR_PTR(-ENODATA);
 			return NULL;
@@ -227,7 +228,8 @@ struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
 		acl = ERR_PTR(retval);
 	} else {
 		acl = posix_acl_from_disk(value, retval);
-		*p_acl = posix_acl_dup(acl);
+		if (!IS_ERR(acl))
+			*p_acl = posix_acl_dup(acl);
 	}
 
 	kfree(value);
@@ -237,7 +239,7 @@ struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
 /*
  * Inode operation set_posix_acl().
  *
- * inode->i_sem: down
+ * inode->i_mutex: down
  * BKL held [before 2.5.x]
  */
 static int
@@ -312,7 +314,7 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 	return error;
 }
 
-/* dir->i_sem: down,
+/* dir->i_mutex: locked,
  * inode is new and not released into the wild yet */
 int
 reiserfs_inherit_default_acl(struct inode *dir, struct dentry *dentry,
@@ -406,8 +408,9 @@ int reiserfs_cache_default_acl(struct inode *inode)
 		acl = reiserfs_get_acl(inode, ACL_TYPE_DEFAULT);
 		reiserfs_read_unlock_xattrs(inode->i_sb);
 		reiserfs_read_unlock_xattr_i(inode);
-		ret = acl ? 1 : 0;
-		posix_acl_release(acl);
+		ret = (acl && !IS_ERR(acl));
+		if (ret)
+			posix_acl_release(acl);
 	}
 
 	return ret;