linux-kernel - [PATCH] Staging: android: ion: duplicated clearing of sg

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Date:	Fri, 25 Apr 2014 08:24:24 +0900
From:	"gioh.kim" <gioh.kim@....com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Colin Cross <ccross@...roid.com>,
	Rebecca Schultz Zavin <rebecca@...roid.com>,
	kernel-team@...roid.com
Cc:	linux-kernel@...r.kernel.org, gunho.lee@....com,
	"gioh.kim" <gioh.kim@....com>
Subject: [PATCH] Staging: android: ion: duplicated clearing of sg_table

From: "gioh.kim" <gioh.kim@....com>

Because sg_table is cleared in sg_alloc_table via memset we don't need to use
kzalloc to allocate sg_table.

Signed-off-by: Gioh Kim <gioh.kim@....com>
---
 drivers/staging/android/ion/ion_carveout_heap.c |    2 +-
 drivers/staging/android/ion/ion_chunk_heap.c    |    2 +-
 drivers/staging/android/ion/ion_system_heap.c   |    4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c
index 3cb05b9..dcb6f21 100644
--- a/drivers/staging/android/ion/ion_carveout_heap.c
+++ b/drivers/staging/android/ion/ion_carveout_heap.c
@@ -81,7 +81,7 @@ static int ion_carveout_heap_allocate(struct ion_heap *heap,
 	if (align > PAGE_SIZE)
 		return -EINVAL;
 
-	table = kzalloc(sizeof(struct sg_table), GFP_KERNEL);
+	table = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
 	if (!table)
 		return -ENOMEM;
 	ret = sg_alloc_table(table, 1, GFP_KERNEL);
diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c
index d40f5f8..3f2c12b 100644
--- a/drivers/staging/android/ion/ion_chunk_heap.c
+++ b/drivers/staging/android/ion/ion_chunk_heap.c
@@ -55,7 +55,7 @@ static int ion_chunk_heap_allocate(struct ion_heap *heap,
 	if (allocated_size > chunk_heap->size - chunk_heap->allocated)
 		return -ENOMEM;
 
-	table = kzalloc(sizeof(struct sg_table), GFP_KERNEL);
+	table = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
 	if (!table)
 		return -ENOMEM;
 	ret = sg_alloc_table(table, num_chunks, GFP_KERNEL);
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
index c923633..0663a7f 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -166,7 +166,7 @@ static int ion_system_heap_allocate(struct ion_heap *heap,
 		max_order = info->order;
 		i++;
 	}
-	table = kzalloc(sizeof(struct sg_table), GFP_KERNEL);
+	table = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
 	if (!table)
 		goto err;
 
@@ -356,7 +356,7 @@ static int ion_system_contig_heap_allocate(struct ion_heap *heap,
 	for (i = len >> PAGE_SHIFT; i < (1 << order); i++)
 		__free_page(page + i);
 
-	table = kzalloc(sizeof(struct sg_table), GFP_KERNEL);
+	table = kmalloc(sizeof(struct sg_table), GFP_KERNEL);
 	if (!table) {
 		ret = -ENOMEM;
 		goto out;
-- 
1.7.9.5

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