summaryrefslogtreecommitdiffstats
path: root/fs
diff options
context:
space:
mode:
Diffstat (limited to 'fs')
-rw-r--r--fs/ext4/inode.c5
-rw-r--r--fs/ext4/mballoc.c2
2 files changed, 7 insertions, 0 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 58604fe11f4f..077c3c9c432e 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -761,6 +761,11 @@ static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
* parent to disk.
*/
bh = sb_getblk(inode->i_sb, new_blocks[n-1]);
+ if (unlikely(!bh)) {
+ err = -EIO;
+ goto failed;
+ }
+
branch[n].bh = bh;
lock_buffer(bh);
BUFFER_TRACE(bh, "call get_create_access");
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index d732ef5a835d..611c866ef3fe 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4537,6 +4537,8 @@ void ext4_free_blocks(handle_t *handle, struct inode *inode,
if (!bh)
tbh = sb_find_get_block(inode->i_sb,
block + i);
+ if (unlikely(!tbh))
+ continue;
ext4_forget(handle, flags & EXT4_FREE_BLOCKS_METADATA,
inode, tbh, block + i);
}