[PATCH] gpu: vmwgfx: Use dma_pool_zalloc

[Souptick Joarder]

We should use dma_pool_zalloc instead of dma_pool_alloc/memset

Signed-off-by: Souptick joarder <jrdr.linux at gmail.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c 
b/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c
index aa04fb0..fa097cc 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf.c
@@ -784,8 +784,8 @@ static int vmw_cmdbuf_space_pool(struct vmw_cmdbuf_man *man,
        if (ret)
                return ret;

-       header->cb_header = dma_pool_alloc(man->headers, GFP_KERNEL,
-                                          &header->handle);
+       header->cb_header = dma_pool_zalloc(man->headers, GFP_KERNEL,
+                                           &header->handle);
        if (!header->cb_header) {
                ret = -ENOMEM;
                goto out_no_cb_header;
@@ -795,7 +795,6 @@ static int vmw_cmdbuf_space_pool(struct vmw_cmdbuf_man *man,
        cb_hdr = header->cb_header;
        offset = header->node.start << PAGE_SHIFT;
        header->cmd = man->map + offset;
-       memset(cb_hdr, 0, sizeof(*cb_hdr));
        if (man->using_mob) {
                cb_hdr->flags = SVGA_CB_FLAG_MOB;
                cb_hdr->ptr.mob.mobid = man->cmd_space->mem.start;
@@ -832,8 +831,8 @@ static int vmw_cmdbuf_space_inline(struct vmw_cmdbuf_man 
*man,
        if (WARN_ON_ONCE(size > VMW_CMDBUF_INLINE_SIZE))
                return -ENOMEM;

-       dheader = dma_pool_alloc(man->dheaders, GFP_KERNEL,
-                                &header->handle);
+       dheader = dma_pool_zalloc(man->dheaders, GFP_KERNEL,
+                                 &header->handle);
        if (!dheader)
                return -ENOMEM;

@@ -842,7 +841,6 @@ static int vmw_cmdbuf_space_inline(struct vmw_cmdbuf_man 
*man,
        cb_hdr = &dheader->cb_header;
        header->cb_header = cb_hdr;
        header->cmd = dheader->cmd;
-       memset(dheader, 0, sizeof(*dheader));
        cb_hdr->status = SVGA_CB_STATUS_NONE;
        cb_hdr->flags = SVGA_CB_FLAG_NONE;
        cb_hdr->ptr.pa = (u64)header->handle +
--
1.9.1