[PATCH] amd/powerplay: use kmemdup instead of kmalloc + memcpy

[Edward O'Callaghan]

Save a few clocks by replacing calls to kmalloc followed by memcpy
with a single call to kmemdup.

Signed-off-by: Edward O'Callaghan <funfunctor at folklore1984.net>
---
 drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 2de34a5..5ff1124 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -765,15 +765,12 @@ static int pp_dpm_set_pp_table(void *handle, const char *buf, size_t size)
 	PP_CHECK_HW(hwmgr);
 
 	if (!hwmgr->hardcode_pp_table) {
-		hwmgr->hardcode_pp_table =
-				kzalloc(hwmgr->soft_pp_table_size, GFP_KERNEL);
+		hwmgr->hardcode_pp_table = kmemdup(hwmgr->soft_pp_table,
+						   hwmgr->soft_pp_table_size,
+						   GFP_KERNEL);
 
 		if (!hwmgr->hardcode_pp_table)
 			return -ENOMEM;
-
-		/* to avoid powerplay crash when hardcode pptable is empty */
-		memcpy(hwmgr->hardcode_pp_table, hwmgr->soft_pp_table,
-				hwmgr->soft_pp_table_size);
 	}
 
 	memcpy(hwmgr->hardcode_pp_table, buf, size);
-- 
2.7.4