linux-kernel - [PATCH] partitions/efi.c: replace useless kzalloc's by kmalloc's

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Date:	Mon, 29 Apr 2013 23:00:18 +0200
From:	Philippe De Muyter <phdm@...qel.be>
To:	linux-kernel@...r.kernel.org
Cc:	Philippe De Muyter <phdm@...qel.be>,
	Matt Domsch <Matt_Domsch@...l.com>,
	Panagiotis Issaris <takis@...aris.org>,
	Jens Axboe <axboe@...nel.dk>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] partitions/efi.c: replace useless kzalloc's by kmalloc's

In alloc_read_gpt_entries and alloc_read_gpt_header, the kzalloc'ated
zones are either totally overwritten by the following read_lba call,
or freed.  As kmalloc is cheaper than kzalloc, use kmalloc.

Signed-off-by: Philippe De Muyter <phdm@...qel.be>
Cc: Matt Domsch <Matt_Domsch@...l.com>
Cc: Panagiotis Issaris <takis@...aris.org>
Cc: Jens Axboe <axboe@...nel.dk>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 block/partitions/efi.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/partitions/efi.c b/block/partitions/efi.c
index ff5804e..c85fc89 100644
--- a/block/partitions/efi.c
+++ b/block/partitions/efi.c
@@ -238,7 +238,7 @@ static gpt_entry *alloc_read_gpt_entries(struct parsed_partitions *state,
                 le32_to_cpu(gpt->sizeof_partition_entry);
 	if (!count)
 		return NULL;
-	pte = kzalloc(count, GFP_KERNEL);
+	pte = kmalloc(count, GFP_KERNEL);
 	if (!pte)
 		return NULL;
 
@@ -267,7 +267,7 @@ static gpt_header *alloc_read_gpt_header(struct parsed_partitions *state,
 	gpt_header *gpt;
 	unsigned ssz = bdev_logical_block_size(state->bdev);
 
-	gpt = kzalloc(ssz, GFP_KERNEL);
+	gpt = kmalloc(ssz, GFP_KERNEL);
 	if (!gpt)
 		return NULL;
 
-- 
1.7.1

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