[PATCH] ion: remove duplicated clearing of sg_table initialization

[Gioh Kim]

Hi,

I found a duplicated zeroing at sg_table initialization in ION of linux-
3.15.0-rc2 version.
Here is my patch.

Subject: [PATCH] ion: remove duplicated clearing of sg_table initialization

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 at lge.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