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staging: r8188eu: convert rtw_pwr_wakeup to correct error code semantics

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Convert the rtw_pwr_wakeup function to use 0 on success and an appropriate
error code on error. For the first failure block where ips_leave is
invoked, use -ENOMEM as this is the main cause of failure here anyway.
For the second failure block, use -EBUSY, as it seems the most
appropriate.

Finally, within the functions rtw_wx_set_mode, rtw_wx_set_wap,
rtw_wx_set_scan and rtw_wx_set_essid, pass the error code on from
rtw_pwr_wakeup as appropriate now that it is converted.

This gets the driver closer to removal of the non-standard _SUCCESS and
_FAIL definitions, which are inverted compared to the standard in-kernel
error code mechanism.

Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20220725220745.12739-1-phil@philpotter.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Phillip Potter 2022-07-25 23:07:45 +01:00 committed by Greg Kroah-Hartman
parent 4709238102
commit 2b5002e2cc
3 changed files with 15 additions and 23 deletions
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4
drivers/staging/r8188eu/core/rtw_p2p.c
View file

@ -1888,7 +1888,7 @@ int rtw_p2p_enable(struct adapter *padapter, enum P2P_ROLE role)
if (role == P2P_ROLE_DEVICE || role == P2P_ROLE_CLIENT || role == P2P_ROLE_GO) {
/* leave IPS/Autosuspend */
if (rtw_pwr_wakeup(padapter) == _FAIL) {
if (rtw_pwr_wakeup(padapter)) {
ret = _FAIL;
goto exit;
}
@ -1902,7 +1902,7 @@ int rtw_p2p_enable(struct adapter *padapter, enum P2P_ROLE role)
init_wifidirect_info(padapter, role);
} else if (role == P2P_ROLE_DISABLE) {
if (rtw_pwr_wakeup(padapter) == _FAIL) {
if (rtw_pwr_wakeup(padapter)) {
ret = _FAIL;
goto exit;
}

10
drivers/staging/r8188eu/core/rtw_pwrctrl.c
View file

@ -381,24 +381,24 @@ int rtw_pwr_wakeup(struct adapter *padapter)
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
unsigned long timeout = jiffies + msecs_to_jiffies(3000);
unsigned long deny_time;
int ret = _SUCCESS;
int ret = 0;
while (pwrpriv->ps_processing && time_before(jiffies, timeout))
msleep(10);
/* I think this should be check in IPS, LPS, autosuspend functions... */
if (check_fwstate(pmlmepriv, _FW_LINKED)) {
ret = _SUCCESS;
ret = 0;
goto exit;
}
if (pwrpriv->rf_pwrstate == rf_off && ips_leave(padapter) == _FAIL) {
ret = _FAIL;
ret = -ENOMEM;
goto exit;
}
if (padapter->bDriverStopped || !padapter->bup || !padapter->hw_init_completed) {
ret = _FAIL;
ret = -EBUSY;
goto exit;
}
@ -439,7 +439,7 @@ int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
return 0;
} else if (mode == IPS_NONE) {
rtw_ips_mode_req(pwrctrlpriv, mode);
if ((padapter->bSurpriseRemoved == 0) && (rtw_pwr_wakeup(padapter) == _FAIL))
if ((padapter->bSurpriseRemoved == 0) && rtw_pwr_wakeup(padapter))
return -EFAULT;
} else {
return -EINVAL;

24
drivers/staging/r8188eu/os_dep/ioctl_linux.c
View file

@ -687,12 +687,9 @@ static int rtw_wx_set_mode(struct net_device *dev, struct iw_request_info *a,
enum ndis_802_11_network_infra networkType;
int ret = 0;
if (_FAIL == rtw_pwr_wakeup(padapter)) {
ret = -EPERM;
ret = rtw_pwr_wakeup(padapter);
if (ret)
goto exit;
}
if (!padapter->hw_init_completed) {
ret = -EPERM;
@ -931,12 +928,9 @@ static int rtw_wx_set_wap(struct net_device *dev,
struct wlan_network *pnetwork = NULL;
enum ndis_802_11_auth_mode authmode;
if (_FAIL == rtw_pwr_wakeup(padapter)) {
ret = -1;
ret = rtw_pwr_wakeup(padapter);
if (ret)
goto exit;
}
if (!padapter->bup) {
ret = -1;
@ -1049,10 +1043,9 @@ static int rtw_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
struct ndis_802_11_ssid ssid[RTW_SSID_SCAN_AMOUNT];
struct wifidirect_info *pwdinfo = &padapter->wdinfo;
if (_FAIL == rtw_pwr_wakeup(padapter)) {
ret = -1;
ret = rtw_pwr_wakeup(padapter);
if (ret)
goto exit;
}
if (padapter->bDriverStopped) {
ret = -1;
@ -1252,10 +1245,9 @@ static int rtw_wx_set_essid(struct net_device *dev,
uint ret = 0, len;
if (_FAIL == rtw_pwr_wakeup(padapter)) {
ret = -1;
ret = rtw_pwr_wakeup(padapter);
if (ret)
goto exit;
}
if (!padapter->bup) {
ret = -1;