drm/radeon: Use vmalloc_array and vcalloc to simplify code

Use vcalloc() and vmalloc_array() to simplify the functions
radeon_gart_init().

vmalloc_array() is also optimized better, resulting in less instructions
being used.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index 4bb242437ff607c5e0058aaca221426c88516be4..acd89a20f272479017730f048a06e35ba285117e 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -346,14 +346,14 @@ int radeon_gart_init(struct radeon_device *rdev)
        DRM_INFO("GART: num cpu pages %u, num gpu pages %u\n",
                 rdev->gart.num_cpu_pages, rdev->gart.num_gpu_pages);
        /* Allocate pages table */
-       rdev->gart.pages = vzalloc(array_size(sizeof(void *),
-                                  rdev->gart.num_cpu_pages));
+       rdev->gart.pages = vcalloc(rdev->gart.num_cpu_pages,
+                                  sizeof(void *));
        if (rdev->gart.pages == NULL) {
                radeon_gart_fini(rdev);
                return -ENOMEM;
        }
-       rdev->gart.pages_entry = vmalloc(array_size(sizeof(uint64_t),
-                                                   rdev->gart.num_gpu_pages));
+       rdev->gart.pages_entry = vmalloc_array(rdev->gart.num_gpu_pages,
+                                              sizeof(uint64_t));
        if (rdev->gart.pages_entry == NULL) {
                radeon_gart_fini(rdev);
                return -ENOMEM;