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Btrfs: check return value of kmalloc() 

The check on the return value of kmalloc() is added to some places.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
wifi-calibration
Tsutomu Itoh 2011-04-25 19:43:52 -04:00 committed by Chris Mason
parent 43e817a1fd
commit 8d413713ca
2 changed files with 7 additions and 0 deletions
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4
fs/btrfs/extent-tree.c
View File

@ -8059,6 +8059,10 @@ static noinline int relocate_one_extent(struct btrfs_root *extent_root,
u64 group_start = group->key.objectid;
new_extents = kmalloc(sizeof(*new_extents),
GFP_NOFS);
if (!new_extents) {
ret = -ENOMEM;
goto out;
}
nr_extents = 1;
ret = get_new_locations(reloc_inode,
extent_key,

3
fs/btrfs/inode.c
View File

@ -953,6 +953,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
1, 0, NULL, GFP_NOFS);
while (start < end) {
async_cow = kmalloc(sizeof(*async_cow), GFP_NOFS);
BUG_ON(!async_cow);
async_cow->inode = inode;
async_cow->root = root;
async_cow->locked_page = locked_page;
@ -5001,6 +5002,8 @@ static noinline int uncompress_inline(struct btrfs_path *path,
inline_size = btrfs_file_extent_inline_item_len(leaf,
btrfs_item_nr(leaf, path->slots[0]));
tmp = kmalloc(inline_size, GFP_NOFS);
if (!tmp)
return -ENOMEM;
ptr = btrfs_file_extent_inline_start(item);
read_extent_buffer(leaf, tmp, ptr, inline_size);