f2fs: handle errors from get_node_page calls
Add check for error pointers returned from get_node_page in order to
avoid dereferencing a bad address on the next use.
Signed-off-by: Jason Hrycay <jason.hrycay@motorola.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 0b02dce..ae61f35 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -218,6 +218,8 @@
return -ENODATA;
page = get_node_page(sbi, fi->i_xattr_nid);
+ if (IS_ERR(page))
+ return PTR_ERR(page);
base_addr = page_address(page);
list_for_each_xattr(entry, base_addr) {
@@ -268,6 +270,8 @@
return 0;
page = get_node_page(sbi, fi->i_xattr_nid);
+ if (IS_ERR(page))
+ return PTR_ERR(page);
base_addr = page_address(page);
list_for_each_xattr(entry, base_addr) {