[PATCH 1/2] staging: rtl8712: clean up comparsions to NULL

From: Michael Straube
Date: Sat Sep 19 2020 - 04:58:12 EST

Clean up comparsions to NULL Reported by checkpatch.
if (x == NULL) -> if (!x)
if (x != NULL) -> if (x)

Signed-off-by: Michael Straube <straube.linux@xxxxxxxxx>
---
drivers/staging/rtl8712/rtl871x_cmd.c | 4 ++--
drivers/staging/rtl8712/rtl871x_io.c | 2 +-
drivers/staging/rtl8712/rtl871x_ioctl_linux.c | 16 ++++++-------
drivers/staging/rtl8712/rtl871x_mlme.c | 11 ++++-----
drivers/staging/rtl8712/rtl871x_mp_ioctl.c | 2 +-
drivers/staging/rtl8712/rtl871x_recv.c | 20 ++++++++--------
drivers/staging/rtl8712/rtl871x_security.c | 8 +++----
drivers/staging/rtl8712/rtl871x_sta_mgt.c | 4 ++--
drivers/staging/rtl8712/rtl871x_xmit.c | 24 +++++++++----------
drivers/staging/rtl8712/usb_intf.c | 2 +-
10 files changed, 46 insertions(+), 47 deletions(-)

diff --git a/drivers/staging/rtl8712/rtl871x_cmd.c b/drivers/staging/rtl8712/rtl871x_cmd.c
index c7523072a660..18116469bd31 100644
--- a/drivers/staging/rtl8712/rtl871x_cmd.c
+++ b/drivers/staging/rtl8712/rtl871x_cmd.c
@@ -161,7 +161,7 @@ void r8712_free_cmd_obj(struct cmd_obj *pcmd)
if ((pcmd->cmdcode != _JoinBss_CMD_) &&
(pcmd->cmdcode != _CreateBss_CMD_))
kfree(pcmd->parmbuf);
- if (pcmd->rsp != NULL) {
+ if (pcmd->rsp) {
if (pcmd->rspsz != 0)
kfree(pcmd->rsp);
}
@@ -191,7 +191,7 @@ u8 r8712_sitesurvey_cmd(struct _adapter *padapter,
psurveyPara->passive_mode = cpu_to_le32(pmlmepriv->passive_mode);
psurveyPara->ss_ssidlen = 0;
memset(psurveyPara->ss_ssid, 0, IW_ESSID_MAX_SIZE + 1);
- if ((pssid != NULL) && (pssid->SsidLength)) {
+ if (pssid && pssid->SsidLength) {
memcpy(psurveyPara->ss_ssid, pssid->Ssid, pssid->SsidLength);
psurveyPara->ss_ssidlen = cpu_to_le32(pssid->SsidLength);
}
diff --git a/drivers/staging/rtl8712/rtl871x_io.c b/drivers/staging/rtl8712/rtl871x_io.c
index 87024d6a465e..6789a4c98564 100644
--- a/drivers/staging/rtl8712/rtl871x_io.c
+++ b/drivers/staging/rtl8712/rtl871x_io.c
@@ -50,7 +50,7 @@ static uint _init_intf_hdl(struct _adapter *padapter,
init_intf_priv = &r8712_usb_init_intf_priv;
pintf_priv = pintf_hdl->pintfpriv = kmalloc(sizeof(struct intf_priv),
GFP_ATOMIC);
- if (pintf_priv == NULL)
+ if (!pintf_priv)
goto _init_intf_hdl_fail;
pintf_hdl->adapter = (u8 *)padapter;
set_intf_option(&pintf_hdl->intf_option);
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
index df6ae855f3c1..cbaa7a489748 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
@@ -481,11 +481,11 @@ static int r871x_set_wpa_ie(struct _adapter *padapter, char *pie,
int group_cipher = 0, pairwise_cipher = 0;
int ret = 0;

- if ((ielen > MAX_WPA_IE_LEN) || (pie == NULL))
+ if (ielen > MAX_WPA_IE_LEN || !pie)
return -EINVAL;
if (ielen) {
buf = kmemdup(pie, ielen, GFP_ATOMIC);
- if (buf == NULL)
+ if (!buf)
return -ENOMEM;
if (ielen < RSN_HEADER_LEN) {
ret = -EINVAL;
@@ -777,7 +777,7 @@ static int r871x_wx_set_pmkid(struct net_device *dev,
* If cmd is IW_PMKSA_REMOVE, it means the wpa_supplicant wants to
* remove a PMKID/BSSID from driver.
*/
- if (pPMK == NULL)
+ if (!pPMK)
return -EINVAL;
memcpy(strIssueBssid, pPMK->bssid.sa_data, ETH_ALEN);
switch (pPMK->cmd) {
@@ -1099,7 +1099,7 @@ static int r871x_wx_set_mlme(struct net_device *dev,
struct _adapter *padapter = netdev_priv(dev);
struct iw_mlme *mlme = (struct iw_mlme *) extra;

- if (mlme == NULL)
+ if (!mlme)
return -1;
switch (mlme->cmd) {
case IW_MLME_DEAUTH:
@@ -1950,7 +1950,7 @@ static int r871x_get_ap_info(struct net_device *dev,
u8 bssid[ETH_ALEN];
char data[33];

- if (padapter->driver_stopped || (pdata == NULL))
+ if (padapter->driver_stopped || !pdata)
return -EINVAL;
while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY |
_FW_UNDER_LINKING)) {
@@ -2014,7 +2014,7 @@ static int r871x_set_pid(struct net_device *dev,
struct _adapter *padapter = netdev_priv(dev);
struct iw_point *pdata = &wrqu->data;

- if ((padapter->driver_stopped) || (pdata == NULL))
+ if (padapter->driver_stopped || !pdata)
return -EINVAL;
if (copy_from_user(&padapter->pid, pdata->pointer, sizeof(int)))
return -EINVAL;
@@ -2030,7 +2030,7 @@ static int r871x_set_chplan(struct net_device *dev,
struct iw_point *pdata = &wrqu->data;
int ch_plan = -1;

- if ((padapter->driver_stopped) || (pdata == NULL)) {
+ if (padapter->driver_stopped || !pdata) {
ret = -EINVAL;
goto exit;
}
@@ -2050,7 +2050,7 @@ static int r871x_wps_start(struct net_device *dev,
struct iw_point *pdata = &wrqu->data;
u32 u32wps_start = 0;

- if ((padapter->driver_stopped) || (pdata == NULL))
+ if (padapter->driver_stopped || !pdata)
return -EINVAL;
if (copy_from_user((void *)&u32wps_start, pdata->pointer, 4))
return -EFAULT;
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index 2ccd49032206..6074383ec0b5 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -754,7 +754,7 @@ void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
ptarget_wlan->fixed = true;
}

- if (ptarget_wlan == NULL) {
+ if (!ptarget_wlan) {
if (check_fwstate(pmlmepriv,
_FW_UNDER_LINKING))
pmlmepriv->fw_state ^=
@@ -768,7 +768,7 @@ void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
ptarget_sta =
r8712_get_stainfo(pstapriv,
pnetwork->network.MacAddress);
- if (ptarget_sta == NULL)
+ if (!ptarget_sta)
ptarget_sta =
r8712_alloc_stainfo(pstapriv,
pnetwork->network.MacAddress);
@@ -879,7 +879,7 @@ void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
if (!r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr))
return;
psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
- if (psta != NULL) {
+ if (psta) {
/*the sta have been in sta_info_queue => do nothing
*(between drv has received this event before and
* fw have not yet to set key to CAM_ENTRY)
@@ -888,7 +888,7 @@ void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
}

psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
- if (psta == NULL)
+ if (!psta)
return;
/* to do : init sta_info variable */
psta->qos_option = 0;
@@ -1080,8 +1080,7 @@ int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
pmlmepriv->pscanned = phead->next;
while (1) {
if (end_of_queue_search(phead, pmlmepriv->pscanned)) {
- if ((pmlmepriv->assoc_by_rssi) &&
- (pnetwork_max_rssi != NULL)) {
+ if (pmlmepriv->assoc_by_rssi && pnetwork_max_rssi) {
pnetwork = pnetwork_max_rssi;
goto ask_for_joinbss;
}
diff --git a/drivers/staging/rtl8712/rtl871x_mp_ioctl.c b/drivers/staging/rtl8712/rtl871x_mp_ioctl.c
index 29b85330815f..f906d3fbe179 100644
--- a/drivers/staging/rtl8712/rtl871x_mp_ioctl.c
+++ b/drivers/staging/rtl8712/rtl871x_mp_ioctl.c
@@ -186,7 +186,7 @@ static int mp_start_test(struct _adapter *padapter)
if (psta)
r8712_free_stainfo(padapter, psta);
psta = r8712_alloc_stainfo(&padapter->stapriv, bssid.MacAddress);
- if (psta == NULL) {
+ if (!psta) {
res = -ENOMEM;
goto end_of_mp_start_test;
}
diff --git a/drivers/staging/rtl8712/rtl871x_recv.c b/drivers/staging/rtl8712/rtl871x_recv.c
index c1bfd61824ef..eb4e46a7f743 100644
--- a/drivers/staging/rtl8712/rtl871x_recv.c
+++ b/drivers/staging/rtl8712/rtl871x_recv.c
@@ -58,7 +58,7 @@ void _r8712_init_recv_priv(struct recv_priv *precvpriv,
precvpriv->pallocated_frame_buf = kzalloc(NR_RECVFRAME *
sizeof(union recv_frame) + RXFRAME_ALIGN_SZ,
GFP_ATOMIC);
- if (precvpriv->pallocated_frame_buf == NULL)
+ if (!precvpriv->pallocated_frame_buf)
return;
kmemleak_not_leak(precvpriv->pallocated_frame_buf);
precvpriv->precv_frame_buf = precvpriv->pallocated_frame_buf +
@@ -97,7 +97,7 @@ union recv_frame *r8712_alloc_recvframe(struct __queue *pfree_recv_queue)
if (precvframe) {
list_del_init(&precvframe->u.hdr.list);
padapter = precvframe->u.hdr.adapter;
- if (padapter != NULL) {
+ if (padapter) {
precvpriv = &padapter->recvpriv;
if (pfree_recv_queue == &precvpriv->free_recv_queue)
precvpriv->free_recvframe_cnt--;
@@ -145,7 +145,7 @@ sint r8712_recvframe_chkmic(struct _adapter *adapter,
stainfo = r8712_get_stainfo(&adapter->stapriv, &prxattrib->ta[0]);
if (prxattrib->encrypt == _TKIP_) {
/* calculate mic code */
- if (stainfo != NULL) {
+ if (stainfo) {
if (is_multicast_ether_addr(prxattrib->ra)) {
iv = precvframe->u.hdr.rx_data +
prxattrib->hdrlen;
@@ -242,7 +242,7 @@ union recv_frame *r8712_portctrl(struct _adapter *adapter,
ptr = ptr + pfhdr->attrib.hdrlen + LLC_HEADER_SIZE;
ether_type = get_unaligned_be16(ptr);

- if ((psta != NULL) && (psta->ieee8021x_blocked)) {
+ if (psta && psta->ieee8021x_blocked) {
/* blocked
* only accept EAPOL frame
*/
@@ -349,7 +349,7 @@ static sint sta2sta_data_frame(struct _adapter *adapter,
*psta = r8712_get_bcmc_stainfo(adapter);
else
*psta = r8712_get_stainfo(pstapriv, sta_addr); /* get ap_info */
- if (*psta == NULL) {
+ if (!*psta) {
if (check_fwstate(pmlmepriv, WIFI_MP_STATE))
adapter->mppriv.rx_pktloss++;
return _FAIL;
@@ -399,7 +399,7 @@ static sint ap2sta_data_frame(struct _adapter *adapter,
*psta = r8712_get_bcmc_stainfo(adapter);
else
*psta = r8712_get_stainfo(pstapriv, pattrib->bssid);
- if (*psta == NULL)
+ if (!*psta)
return _FAIL;
} else if (check_fwstate(pmlmepriv, WIFI_MP_STATE) &&
check_fwstate(pmlmepriv, _FW_LINKED)) {
@@ -410,7 +410,7 @@ static sint ap2sta_data_frame(struct _adapter *adapter,
memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
memcpy(pattrib->bssid, mybssid, ETH_ALEN);
*psta = r8712_get_stainfo(pstapriv, pattrib->bssid);
- if (*psta == NULL)
+ if (!*psta)
return _FAIL;
} else {
return _FAIL;
@@ -435,7 +435,7 @@ static sint sta2ap_data_frame(struct _adapter *adapter,
if (memcmp(pattrib->bssid, mybssid, ETH_ALEN))
return _FAIL;
*psta = r8712_get_stainfo(pstapriv, pattrib->src);
- if (*psta == NULL)
+ if (!*psta)
return _FAIL;
}
return _SUCCESS;
@@ -469,7 +469,7 @@ static sint validate_recv_data_frame(struct _adapter *adapter,
pda = get_da(ptr);
psa = get_sa(ptr);
pbssid = get_hdr_bssid(ptr);
- if (pbssid == NULL)
+ if (!pbssid)
return _FAIL;
memcpy(pattrib->dst, pda, ETH_ALEN);
memcpy(pattrib->src, psa, ETH_ALEN);
@@ -499,7 +499,7 @@ static sint validate_recv_data_frame(struct _adapter *adapter,
}
if (res == _FAIL)
return _FAIL;
- if (psta == NULL)
+ if (!psta)
return _FAIL;
precv_frame->u.hdr.psta = psta;
pattrib->amsdu = 0;
diff --git a/drivers/staging/rtl8712/rtl871x_security.c b/drivers/staging/rtl8712/rtl871x_security.c
index c05010d85212..5000c87752d3 100644
--- a/drivers/staging/rtl8712/rtl871x_security.c
+++ b/drivers/staging/rtl8712/rtl871x_security.c
@@ -584,7 +584,7 @@ u32 r8712_tkip_encrypt(struct _adapter *padapter, u8 *pxmitframe)
else
stainfo = r8712_get_stainfo(&padapter->stapriv,
&pattrib->ra[0]);
- if (stainfo != NULL) {
+ if (stainfo) {
prwskey = &stainfo->x_UncstKey.skey[0];
for (curfragnum = 0; curfragnum < pattrib->nr_frags;
curfragnum++) {
@@ -658,7 +658,7 @@ void r8712_tkip_decrypt(struct _adapter *padapter, u8 *precvframe)
if (prxattrib->encrypt == _TKIP_) {
stainfo = r8712_get_stainfo(&padapter->stapriv,
&prxattrib->ta[0]);
- if (stainfo != NULL) {
+ if (stainfo) {
iv = pframe + prxattrib->hdrlen;
payload = pframe + prxattrib->iv_len +
prxattrib->hdrlen;
@@ -1155,7 +1155,7 @@ u32 r8712_aes_encrypt(struct _adapter *padapter, u8 *pxmitframe)
else
stainfo = r8712_get_stainfo(&padapter->stapriv,
&pattrib->ra[0]);
- if (stainfo != NULL) {
+ if (stainfo) {
prwskey = &stainfo->x_UncstKey.skey[0];
for (curfragnum = 0; curfragnum < pattrib->nr_frags;
curfragnum++) {
@@ -1357,7 +1357,7 @@ void r8712_aes_decrypt(struct _adapter *padapter, u8 *precvframe)
if (prxattrib->encrypt == _AES_) {
stainfo = r8712_get_stainfo(&padapter->stapriv,
&prxattrib->ta[0]);
- if (stainfo != NULL) {
+ if (stainfo) {
if (is_multicast_ether_addr(prxattrib->ra)) {
iv = pframe + prxattrib->hdrlen;
idx = iv[3];
diff --git a/drivers/staging/rtl8712/rtl871x_sta_mgt.c b/drivers/staging/rtl8712/rtl871x_sta_mgt.c
index 653812c5d5a8..706e9db0fc5b 100644
--- a/drivers/staging/rtl8712/rtl871x_sta_mgt.c
+++ b/drivers/staging/rtl8712/rtl871x_sta_mgt.c
@@ -149,7 +149,7 @@ void r8712_free_stainfo(struct _adapter *padapter, struct sta_info *psta)
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
struct sta_priv *pstapriv = &padapter->stapriv;

- if (psta == NULL)
+ if (!psta)
return;
pfree_sta_queue = &pstapriv->free_sta_queue;
pstaxmitpriv = &psta->sta_xmitpriv;
@@ -222,7 +222,7 @@ struct sta_info *r8712_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
struct sta_info *psta = NULL;
u32 index;

- if (hwaddr == NULL)
+ if (!hwaddr)
return NULL;
index = wifi_mac_hash(hwaddr);
spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
diff --git a/drivers/staging/rtl8712/rtl871x_xmit.c b/drivers/staging/rtl8712/rtl871x_xmit.c
index cae552276ab8..7093903b3af1 100644
--- a/drivers/staging/rtl8712/rtl871x_xmit.c
+++ b/drivers/staging/rtl8712/rtl871x_xmit.c
@@ -156,7 +156,7 @@ void _free_xmit_priv(struct xmit_priv *pxmitpriv)
pxmitpriv->pxmit_frame_buf;
struct xmit_buf *pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;

- if (pxmitpriv->pxmit_frame_buf == NULL)
+ if (!pxmitpriv->pxmit_frame_buf)
return;
for (i = 0; i < NR_XMITFRAME; i++) {
r8712_xmit_complete(padapter, pxmitframe);
@@ -269,7 +269,7 @@ int r8712_update_attrib(struct _adapter *padapter, _pkt *pkt,
pattrib->mac_id = 5;
} else {
psta = r8712_get_stainfo(pstapriv, pattrib->ra);
- if (psta == NULL) /* drop the pkt */
+ if (!psta) /* drop the pkt */
return -ENOMEM;
if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
pattrib->mac_id = 5;
@@ -362,7 +362,7 @@ static int xmitframe_addmic(struct _adapter *padapter,
&pattrib->ra[0]);
if (pattrib->encrypt == _TKIP_) {
/*encode mic code*/
- if (stainfo != NULL) {
+ if (stainfo) {
u8 null_key[16] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0};
@@ -592,10 +592,10 @@ sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt,
u8 *pbuf_start;
bool bmcst = is_multicast_ether_addr(pattrib->ra);

- if (pattrib->psta == NULL)
+ if (!pattrib->psta)
return _FAIL;
psta = pattrib->psta;
- if (pxmitframe->buf_addr == NULL)
+ if (!pxmitframe->buf_addr)
return _FAIL;
pbuf_start = pxmitframe->buf_addr;
ptxdesc = pbuf_start;
@@ -623,7 +623,7 @@ sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt,
mpdu_len -= pattrib->hdrlen;
/* adding icv, if necessary...*/
if (pattrib->iv_len) {
- if (psta != NULL) {
+ if (psta) {
switch (pattrib->encrypt) {
case _WEP40_:
case _WEP104_:
@@ -711,7 +711,7 @@ void r8712_update_protection(struct _adapter *padapter, u8 *ie, uint ie_len)
case AUTO_VCS:
default:
perp = r8712_get_ie(ie, _ERPINFO_IE_, &erp_len, ie_len);
- if (perp == NULL) {
+ if (!perp) {
pxmitpriv->vcs = NONE_VCS;
} else {
protection = (*(perp + 2)) & BIT(1);
@@ -750,7 +750,7 @@ void r8712_free_xmitbuf(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
unsigned long irqL;
struct __queue *pfree_xmitbuf_queue = &pxmitpriv->free_xmitbuf_queue;

- if (pxmitbuf == NULL)
+ if (!pxmitbuf)
return;
spin_lock_irqsave(&pfree_xmitbuf_queue->lock, irqL);
list_del_init(&pxmitbuf->list);
@@ -803,7 +803,7 @@ void r8712_free_xmitframe(struct xmit_priv *pxmitpriv,
struct __queue *pfree_xmit_queue = &pxmitpriv->free_xmit_queue;
struct _adapter *padapter = pxmitpriv->adapter;

- if (pxmitframe == NULL)
+ if (!pxmitframe)
return;
spin_lock_irqsave(&pfree_xmit_queue->lock, irqL);
list_del_init(&pxmitframe->list);
@@ -819,7 +819,7 @@ void r8712_free_xmitframe(struct xmit_priv *pxmitpriv,
void r8712_free_xmitframe_ex(struct xmit_priv *pxmitpriv,
struct xmit_frame *pxmitframe)
{
- if (pxmitframe == NULL)
+ if (!pxmitframe)
return;
if (pxmitframe->frame_tag == DATA_FRAMETAG)
r8712_free_xmitframe(pxmitpriv, pxmitframe);
@@ -910,7 +910,7 @@ int r8712_xmit_classifier(struct _adapter *padapter,
psta = r8712_get_stainfo(pstapriv, pattrib->ra);
}
}
- if (psta == NULL)
+ if (!psta)
return -EINVAL;
ptxservq = get_sta_pending(padapter, &pstapending,
psta, pattrib->priority);
@@ -1022,7 +1022,7 @@ int r8712_pre_xmit(struct _adapter *padapter, struct xmit_frame *pxmitframe)
return ret;
}
pxmitbuf = r8712_alloc_xmitbuf(pxmitpriv);
- if (pxmitbuf == NULL) { /*enqueue packet*/
+ if (!pxmitbuf) { /*enqueue packet*/
ret = false;
r8712_xmit_enqueue(padapter, pxmitframe);
spin_unlock_irqrestore(&pxmitpriv->lock, irqL);
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index 2fcd65260f4c..dc21e7743349 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -577,7 +577,7 @@ static int r871xu_drv_init(struct usb_interface *pusb_intf,
error:
usb_put_dev(udev);
usb_set_intfdata(pusb_intf, NULL);
- if (padapter && padapter->dvobj_deinit != NULL)
+ if (padapter && padapter->dvobj_deinit)
padapter->dvobj_deinit(padapter);
if (pnetdev)
free_netdev(pnetdev);
--
2.28.0