[PATCH v2 19/27] staging: rtl8*: use zeroing allocator rather than allocator followed with memset 0

Fuqian Huang huangfq.daxian at gmail.com
Fri Jun 28 02:49:29 UTC 2019


Use zeroing allocator rather than allocator followed with memset 0.

Signed-off-by: Fuqian Huang <huangfq.daxian at gmail.com>
---
 drivers/staging/rtl8188eu/os_dep/mlme_linux.c     |  3 +--
 drivers/staging/rtl8712/rtl871x_io.c              |  4 +---
 drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c |  8 ++------
 drivers/staging/rtl8723bs/os_dep/ioctl_linux.c    | 12 +++---------
 4 files changed, 7 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/rtl8188eu/os_dep/mlme_linux.c b/drivers/staging/rtl8188eu/os_dep/mlme_linux.c
index 9db11b16cb93..250acb01d1a9 100644
--- a/drivers/staging/rtl8188eu/os_dep/mlme_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/mlme_linux.c
@@ -98,10 +98,9 @@ void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie)
 	if (authmode == _WPA_IE_ID_) {
 		RT_TRACE(_module_mlme_osdep_c_, _drv_info_,
 			 ("rtw_report_sec_ie, authmode=%d\n", authmode));
-		buff = rtw_malloc(IW_CUSTOM_MAX);
+		buff = rtw_zmalloc(IW_CUSTOM_MAX);
 		if (!buff)
 			return;
-		memset(buff, 0, IW_CUSTOM_MAX);
 		p = buff;
 		p += sprintf(p, "ASSOCINFO(ReqIEs =");
 		len = sec_ie[1] + 2;
diff --git a/drivers/staging/rtl8712/rtl871x_io.c b/drivers/staging/rtl8712/rtl871x_io.c
index 17dafeffd6f4..87024d6a465e 100644
--- a/drivers/staging/rtl8712/rtl871x_io.c
+++ b/drivers/staging/rtl8712/rtl871x_io.c
@@ -107,13 +107,11 @@ uint r8712_alloc_io_queue(struct _adapter *adapter)
 	INIT_LIST_HEAD(&pio_queue->processing);
 	INIT_LIST_HEAD(&pio_queue->pending);
 	spin_lock_init(&pio_queue->lock);
-	pio_queue->pallocated_free_ioreqs_buf = kmalloc(NUM_IOREQ *
+	pio_queue->pallocated_free_ioreqs_buf = kzalloc(NUM_IOREQ *
 						(sizeof(struct io_req)) + 4,
 						GFP_ATOMIC);
 	if ((pio_queue->pallocated_free_ioreqs_buf) == NULL)
 		goto alloc_io_queue_fail;
-	memset(pio_queue->pallocated_free_ioreqs_buf, 0,
-			(NUM_IOREQ * (sizeof(struct io_req)) + 4));
 	pio_queue->free_ioreqs_buf = pio_queue->pallocated_free_ioreqs_buf + 4
 			- ((addr_t)(pio_queue->pallocated_free_ioreqs_buf)
 			& 3);
diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
index db553f2e4c0b..f8e0723f5d1f 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
@@ -1078,12 +1078,10 @@ static int cfg80211_rtw_add_key(struct wiphy *wiphy, struct net_device *ndev,
 	DBG_871X("pairwise =%d\n", pairwise);
 
 	param_len = sizeof(struct ieee_param) + params->key_len;
-	param = rtw_malloc(param_len);
+	param = rtw_zmalloc(param_len);
 	if (param == NULL)
 		return -1;
 
-	memset(param, 0, param_len);
-
 	param->cmd = IEEE_CMD_SET_ENCRYPTION;
 	memset(param->sta_addr, 0xff, ETH_ALEN);
 
@@ -2167,15 +2165,13 @@ static int cfg80211_rtw_connect(struct wiphy *wiphy, struct net_device *ndev,
 		{
 			wep_key_len = wep_key_len <= 5 ? 5 : 13;
 			wep_total_len = wep_key_len + FIELD_OFFSET(struct ndis_802_11_wep, KeyMaterial);
-			pwep = rtw_malloc(wep_total_len);
+			pwep = rtw_zmalloc(wep_total_len);
 			if (pwep == NULL) {
 				DBG_871X(" wpa_set_encryption: pwep allocate fail !!!\n");
 				ret = -ENOMEM;
 				goto exit;
 			}
 
-			memset(pwep, 0, wep_total_len);
-
 			pwep->KeyLength = wep_key_len;
 			pwep->Length = wep_total_len;
 
diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
index e3d356952875..1491d420929c 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
@@ -478,14 +478,12 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param,
 		if (wep_key_len > 0) {
 			wep_key_len = wep_key_len <= 5 ? 5 : 13;
 			wep_total_len = wep_key_len + FIELD_OFFSET(struct ndis_802_11_wep, KeyMaterial);
-			pwep = rtw_malloc(wep_total_len);
+			pwep = rtw_zmalloc(wep_total_len);
 			if (pwep == NULL) {
 				RT_TRACE(_module_rtl871x_ioctl_os_c, _drv_err_, (" wpa_set_encryption: pwep allocate fail !!!\n"));
 				goto exit;
 			}
 
-			memset(pwep, 0, wep_total_len);
-
 			pwep->KeyLength = wep_key_len;
 			pwep->Length = wep_total_len;
 
@@ -2144,12 +2142,10 @@ static int rtw_wx_set_enc_ext(struct net_device *dev,
 	int ret = 0;
 
 	param_len = sizeof(struct ieee_param) + pext->key_len;
-	param = rtw_malloc(param_len);
+	param = rtw_zmalloc(param_len);
 	if (param == NULL)
 		return -1;
 
-	memset(param, 0, param_len);
-
 	param->cmd = IEEE_CMD_SET_ENCRYPTION;
 	memset(param->sta_addr, 0xff, ETH_ALEN);
 
@@ -3522,14 +3518,12 @@ static int rtw_set_encryption(struct net_device *dev, struct ieee_param *param,
 		if (wep_key_len > 0) {
 			wep_key_len = wep_key_len <= 5 ? 5 : 13;
 			wep_total_len = wep_key_len + FIELD_OFFSET(struct ndis_802_11_wep, KeyMaterial);
-			pwep = rtw_malloc(wep_total_len);
+			pwep = rtw_zmalloc(wep_total_len);
 			if (pwep == NULL) {
 				DBG_871X(" r871x_set_encryption: pwep allocate fail !!!\n");
 				goto exit;
 			}
 
-			memset(pwep, 0, wep_total_len);
-
 			pwep->KeyLength = wep_key_len;
 			pwep->Length = wep_total_len;
 
-- 
2.11.0



More information about the devel mailing list