drm/amd/display: change kzalloc to kcalloc in dcn31_validate_bandwidth()

We are trying to get rid of all multiplications from allocation
functions to prevent integer overflows. Here the multiplication is
probably safe, but using kcalloc() is more appropriate and improves
readability. This patch has no effect on runtime behavior.

Reviewed-by: Rodrigo Siqueira <siqueira@igalia.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ethan Carter Edwards <ethan@ethancedwards.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c
index 3c42ba8566cf8b79106de25c9e0aad4a70898ea6..dddddbfef85f8f65a6f76c86cbb6db59d608a74b 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c
@@ -1768,7 +1768,8 @@ bool dcn31_validate_bandwidth(struct dc *dc,
 
        int vlevel = 0;
        int pipe_cnt = 0;
-       display_e2e_pipe_params_st *pipes = kzalloc(dc->res_pool->pipe_count * sizeof(display_e2e_pipe_params_st), GFP_KERNEL);
+       display_e2e_pipe_params_st *pipes = kcalloc(dc->res_pool->pipe_count,
+                       sizeof(display_e2e_pipe_params_st), GFP_KERNEL);
        DC_LOGGER_INIT(dc->ctx->logger);
 
        BW_VAL_TRACE_COUNT();