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btrfs: cleanup, use kmalloc_array/kcalloc array helpers

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Convert kmalloc(nr * size, ..) to kmalloc_array that does additional
overflow checks, the zeroing variant is kcalloc.

Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
David Sterba
2015-02-20 18:00:26 +01:00
parent f8c269d722
commit 31e818fe73
11 changed files with 18 additions and 21 deletions
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2
fs/btrfs/compression.c
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@@ -622,7 +622,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
cb->orig_bio = bio;
nr_pages = DIV_ROUND_UP(compressed_len, PAGE_CACHE_SIZE);
cb->compressed_pages = kzalloc(sizeof(struct page *) * nr_pages,
cb->compressed_pages = kcalloc(nr_pages, sizeof(struct page *),
GFP_NOFS);
if (!cb->compressed_pages)
goto fail1;