forked from luck/tmp_suning_uos_patched
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>
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@ -8059,6 +8059,10 @@ static noinline int relocate_one_extent(struct btrfs_root *extent_root,
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u64 group_start = group->key.objectid;
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new_extents = kmalloc(sizeof(*new_extents),
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GFP_NOFS);
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if (!new_extents) {
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ret = -ENOMEM;
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goto out;
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}
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nr_extents = 1;
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ret = get_new_locations(reloc_inode,
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extent_key,
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@ -953,6 +953,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
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1, 0, NULL, GFP_NOFS);
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while (start < end) {
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async_cow = kmalloc(sizeof(*async_cow), GFP_NOFS);
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BUG_ON(!async_cow);
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async_cow->inode = inode;
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async_cow->root = root;
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async_cow->locked_page = locked_page;
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@ -5001,6 +5002,8 @@ static noinline int uncompress_inline(struct btrfs_path *path,
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inline_size = btrfs_file_extent_inline_item_len(leaf,
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btrfs_item_nr(leaf, path->slots[0]));
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tmp = kmalloc(inline_size, GFP_NOFS);
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if (!tmp)
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return -ENOMEM;
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ptr = btrfs_file_extent_inline_start(item);
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read_extent_buffer(leaf, tmp, ptr, inline_size);
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