JFS: Remove redundant kfree() NULL pointer checks

kfree() can handle a NULL pointer, don't worry about passing it one. 
Signed-off-by: NJesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: NDave Kleikamp <shaggy@austin.ibm.com>

fs/jfs/acl.c

@@ -70,7 +70,6 @@ static struct posix_acl *jfs_get_acl(struct inode *inode, int type)
 		if (!IS_ERR(acl))
 			*p_acl = posix_acl_dup(acl);
 	}
-	if (value)
 	kfree(value);
 	return acl;
 }
@@ -112,7 +111,6 @@ static int jfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 	}
 	rc = __jfs_setxattr(inode, ea_name, value, size, 0);
 out:
-	if (value)
 	kfree(value);
 
 	if (!rc) {

fs/jfs/xattr.c

@@ -946,7 +946,6 @@ int __jfs_setxattr(struct inode *inode, const char *name, const void *value,
       out:
 	up_write(&JFS_IP(inode)->xattr_sem);
 
-	if (os2name)
 	kfree(os2name);
 
 	return rc;
@@ -1042,7 +1041,6 @@ ssize_t __jfs_getxattr(struct inode *inode, const char *name, void *data,
       out:
 	up_read(&JFS_IP(inode)->xattr_sem);
 
-	if (os2name)
 	kfree(os2name);
 
 	return size;