On Tue, Jan 15, 2019 at 2:58 AM Gustavo A. R. Silva
<gustavo@xxxxxxxxxxxxxx> wrote:
>
> Replace kzalloc() function with its 2-factor argument form, kcalloc().
>
> This patch replaces cases of:
>
> kzalloc(a * b, gfp)
>
> with:
> kcalloc(a, b, gfp)
>
> Also, improve the coding style and the use of sizeof during
> allocation by changing sizeof(struct dc_surface_update) and
> sizeof(struct dc_plane_state) to sizeof(*updates) and
> sizeof(*surfaces), correspondingly.
>
> This code was detected with the help of Coccinelle.
>
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
Applied. thanks!
Alex
> ---
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index a3e65e457348..4c201de38329 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -5782,11 +5782,14 @@ dm_determine_update_type_for_commit(struct dc *dc,
> struct dm_crtc_state *new_dm_crtc_state, *old_dm_crtc_state;
> struct dc_stream_status *status = NULL;
>
> - struct dc_surface_update *updates = kzalloc(MAX_SURFACES * sizeof(struct dc_surface_update), GFP_KERNEL);
> - struct dc_plane_state *surface = kzalloc(MAX_SURFACES * sizeof(struct dc_plane_state), GFP_KERNEL);
> + struct dc_surface_update *updates;
> + struct dc_plane_state *surface;
> struct dc_stream_update stream_update;
> enum surface_update_type update_type = UPDATE_TYPE_FAST;
>
> + updates = kcalloc(MAX_SURFACES, sizeof(*updates), GFP_KERNEL);
> + surface = kcalloc(MAX_SURFACES, sizeof(*surface), GFP_KERNEL);
> +
> if (!updates || !surface) {
> DRM_ERROR("Plane or surface update failed to allocate");
> /* Set type to FULL to avoid crashing in DC*/
> --
> 2.20.1
>
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