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[v2] drm/amd/pm: replace kmalloc+memcpy by kmemdup

Message ID 20201030040359.GA276414@my--box
State New, archived
Headers show
Series [v2] drm/amd/pm: replace kmalloc+memcpy by kmemdup | expand

Commit Message

Deepak R Varma Oct. 30, 2020, 4:03 a.m. UTC
Use kmemdup() for instructions using kmalloc() + memcpy(). More
information here: https://lwn.net/Articles/198928/
Issue reported by coccinelle script: scripts/coccinelle/api/memdup.cocci

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
---
Changes since v1:
   - Update patch subject and log message to match proposed change.
   
Please Note: This is a Outreachy project task patch.

 .../gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c  | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c
index 740e2fc7a034..1e79baab753e 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_processpptables.c
@@ -252,12 +252,11 @@  static int init_powerplay_table_information(
 	phm_copy_clock_limits_array(hwmgr, &pptable_information->power_saving_clock_max, powerplay_table->PowerSavingClockMax, ATOM_VEGA12_PPCLOCK_COUNT);
 	phm_copy_clock_limits_array(hwmgr, &pptable_information->power_saving_clock_min, powerplay_table->PowerSavingClockMin, ATOM_VEGA12_PPCLOCK_COUNT);
 
-	pptable_information->smc_pptable = kmalloc(sizeof(PPTable_t), GFP_KERNEL);
+	pptable_information->smc_pptable = kmemdup(&(powerplay_table->smcPPTable),
+						   sizeof(PPTable_t), GFP_KERNEL);
 	if (pptable_information->smc_pptable == NULL)
 		return -ENOMEM;
 
-	memcpy(pptable_information->smc_pptable, &(powerplay_table->smcPPTable), sizeof(PPTable_t));
-
 	result = append_vbios_pptable(hwmgr, (pptable_information->smc_pptable));
 
 	return result;