drivers/gpu/drm/amd/amdgpu/../display/dc/basics/logger.c:73:23-27: WARNING: casting value returned by memory allocation function to (char *) is useless.

Remove casting the values returned by memory allocation functions like kmalloc, kzalloc, kmem_cache_alloc, kmem_cache_zalloc etc.

Semantic patch information: This makes an effort to find cases of casting of values returned by kmalloc, kzalloc, kcalloc, kmem_cache_alloc, kmem_cache_zalloc, kmem_cache_alloc_node, kmalloc_node and kzalloc_node and removes the casting as it is not required. The result in the patch case may need some reformatting.

Generated by: scripts/coccinelle/api/alloc/alloc_cast.cocci

Fixes: 2004f45ef83f ("drm/amd/display: Use kernel alloc/free") CC: Harry Wentland harry.wentland@amd.com Signed-off-by: Fengguang Wu fengguang.wu@intel.com ---

logger.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdgpu/../display/dc/basics/logger.c +++ b/drivers/gpu/drm/amd/amdgpu/../display/dc/basics/logger.c @@ -70,7 +70,7 @@ static bool construct(struct dc_context { /* malloc buffer and init offsets */ logger->log_buffer_size = DAL_LOGGER_BUFFER_MAX_SIZE; - logger->log_buffer = (char *)kzalloc(logger->log_buffer_size * sizeof(char), + logger->log_buffer = kzalloc(logger->log_buffer_size * sizeof(char), GFP_KERNEL);

if (!logger->log_buffer)