[PATCH v3 12/27] media: use kzalloc instead of kmalloc and memset

From: Fuqian Huang
Date: Tue Jul 02 2019 - 03:58:25 EST


Replace kmalloc followed by a memset with kzalloc.

Signed-off-by: Fuqian Huang <huangfq.daxian@xxxxxxxxx>
---
Changes in v3:
- Resend

drivers/media/usb/pvrusb2/pvrusb2-eeprom.c | 3 +--
drivers/media/usb/pvrusb2/pvrusb2-hdw.c | 3 +--
2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c b/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c
index 79f0e0c6df37..fac90af8b537 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c
@@ -39,7 +39,7 @@ static u8 *pvr2_eeprom_fetch(struct pvr2_hdw *hdw)
int ret;
int mode16 = 0;
unsigned pcnt,tcnt;
- eeprom = kmalloc(EEPROM_SIZE,GFP_KERNEL);
+ eeprom = kzalloc(EEPROM_SIZE,GFP_KERNEL);
if (!eeprom) {
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
"Failed to allocate memory required to read eeprom");
@@ -74,7 +74,6 @@ static u8 *pvr2_eeprom_fetch(struct pvr2_hdw *hdw)
(1) we're only fetching part of the eeprom, and (2) if we were
getting the whole thing our I2C driver can't grab it in one
pass - which is what tveeprom is otherwise going to attempt */
- memset(eeprom,0,EEPROM_SIZE);
for (tcnt = 0; tcnt < EEPROM_SIZE; tcnt += pcnt) {
pcnt = 16;
if (pcnt + tcnt > EEPROM_SIZE) pcnt = EEPROM_SIZE-tcnt;
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
index 70b5cb08d65b..ff75b4a53dfa 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
@@ -3309,7 +3309,7 @@ static u8 *pvr2_full_eeprom_fetch(struct pvr2_hdw *hdw)
int ret;
int mode16 = 0;
unsigned pcnt,tcnt;
- eeprom = kmalloc(EEPROM_SIZE,GFP_KERNEL);
+ eeprom = kzalloc(EEPROM_SIZE,GFP_KERNEL);
if (!eeprom) {
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
"Failed to allocate memory required to read eeprom");
@@ -3344,7 +3344,6 @@ static u8 *pvr2_full_eeprom_fetch(struct pvr2_hdw *hdw)
(1) we're only fetching part of the eeprom, and (2) if we were
getting the whole thing our I2C driver can't grab it in one
pass - which is what tveeprom is otherwise going to attempt */
- memset(eeprom,0,EEPROM_SIZE);
for (tcnt = 0; tcnt < EEPROM_SIZE; tcnt += pcnt) {
pcnt = 16;
if (pcnt + tcnt > EEPROM_SIZE) pcnt = EEPROM_SIZE-tcnt;
--
2.11.0