commit 31e818fe7375d60de9953051f7bd1615cebc3681
author David Sterba <dsterba@suse.cz> Fri Feb 20 18:00:26 2015 +0100
committer David Sterba <dsterba@suse.cz> Tue Mar 03 17:23:58 2015 +0100
tree c096eb4b8398ada2c04ab459705f436bde969beb
parent f8c269d7223f6b63cc5936eb191bc3b170d24342

btrfs: cleanup, use kmalloc_array/kcalloc array helpers

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>

fs/btrfs/compression.c

diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index e9df886..ecacb7a2 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -622,7 +622,7 @@
 	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;