* [PATCH] staging: rtl8188eu: os_dep: usb_intf.c: Fix to remove null pointer checks that could never happen
@ 2014-05-22 19:58 Rickard Strandqvist
2014-05-22 20:57 ` Dan Carpenter
2014-05-22 21:16 ` Josh Triplett
0 siblings, 2 replies; 3+ messages in thread
From: Rickard Strandqvist @ 2014-05-22 19:58 UTC (permalink / raw)
To: Greg Kroah-Hartman, Larry Finger
Cc: Rickard Strandqvist, Manu Gupta, Josh Triplett,
Geert Uytterhoeven, devel, linux-kernel
Removal of null pointer checks that could never happen
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
---
drivers/staging/rtl8188eu/os_dep/usb_intf.c | 110 +++++++++++++--------------
1 file changed, 52 insertions(+), 58 deletions(-)
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
index 2e49cd5..3454e1b 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
@@ -396,49 +396,47 @@ int rtw_hw_suspend(struct adapter *padapter)
goto error_exit;
}
- if (padapter) { /* system suspend */
- LeaveAllPowerSaveMode(padapter);
+ /* system suspend */
+ LeaveAllPowerSaveMode(padapter);
- DBG_88E("==> rtw_hw_suspend\n");
- _enter_pwrlock(&pwrpriv->lock);
- pwrpriv->bips_processing = true;
- /* s1. */
- if (pnetdev) {
- netif_carrier_off(pnetdev);
- rtw_netif_stop_queue(pnetdev);
- }
+ DBG_88E("==> rtw_hw_suspend\n");
+ _enter_pwrlock(&pwrpriv->lock);
+ pwrpriv->bips_processing = true;
+ /* s1. */
+ if (pnetdev) {
+ netif_carrier_off(pnetdev);
+ rtw_netif_stop_queue(pnetdev);
+ }
- /* s2. */
- rtw_disassoc_cmd(padapter, 500, false);
+ /* s2. */
+ rtw_disassoc_cmd(padapter, 500, false);
- /* s2-2. indicate disconnect to os */
- {
- struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
+ /* s2-2. indicate disconnect to os */
+ {
+ struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
- if (check_fwstate(pmlmepriv, _FW_LINKED)) {
- _clr_fwstate_(pmlmepriv, _FW_LINKED);
+ if (check_fwstate(pmlmepriv, _FW_LINKED)) {
+ _clr_fwstate_(pmlmepriv, _FW_LINKED);
- rtw_led_control(padapter, LED_CTL_NO_LINK);
+ rtw_led_control(padapter, LED_CTL_NO_LINK);
- rtw_os_indicate_disconnect(padapter);
+ rtw_os_indicate_disconnect(padapter);
- /* donnot enqueue cmd */
- rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 0);
- }
+ /* donnot enqueue cmd */
+ rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 0);
}
- /* s2-3. */
- rtw_free_assoc_resources(padapter, 1);
+ }
+ /* s2-3. */
+ rtw_free_assoc_resources(padapter, 1);
- /* s2-4. */
- rtw_free_network_queue(padapter, true);
- rtw_ips_dev_unload(padapter);
- pwrpriv->rf_pwrstate = rf_off;
- pwrpriv->bips_processing = false;
+ /* s2-4. */
+ rtw_free_network_queue(padapter, true);
+ rtw_ips_dev_unload(padapter);
+ pwrpriv->rf_pwrstate = rf_off;
+ pwrpriv->bips_processing = false;
+
+ _exit_pwrlock(&pwrpriv->lock);
- _exit_pwrlock(&pwrpriv->lock);
- } else {
- goto error_exit;
- }
return 0;
error_exit:
@@ -452,35 +450,32 @@ int rtw_hw_resume(struct adapter *padapter)
struct net_device *pnetdev = padapter->pnetdev;
- if (padapter) { /* system resume */
- DBG_88E("==> rtw_hw_resume\n");
- _enter_pwrlock(&pwrpriv->lock);
- pwrpriv->bips_processing = true;
- rtw_reset_drv_sw(padapter);
+ /* system resume */
+ DBG_88E("==> rtw_hw_resume\n");
+ _enter_pwrlock(&pwrpriv->lock);
+ pwrpriv->bips_processing = true;
+ rtw_reset_drv_sw(padapter);
- if (pm_netdev_open(pnetdev, false) != 0) {
- _exit_pwrlock(&pwrpriv->lock);
- goto error_exit;
- }
+ if (pm_netdev_open(pnetdev, false) != 0) {
+ _exit_pwrlock(&pwrpriv->lock);
+ goto error_exit;
+ }
- netif_device_attach(pnetdev);
- netif_carrier_on(pnetdev);
+ netif_device_attach(pnetdev);
+ netif_carrier_on(pnetdev);
- if (!netif_queue_stopped(pnetdev))
- netif_start_queue(pnetdev);
- else
- netif_wake_queue(pnetdev);
+ if (!netif_queue_stopped(pnetdev))
+ netif_start_queue(pnetdev);
+ else
+ netif_wake_queue(pnetdev);
- pwrpriv->bkeepfwalive = false;
- pwrpriv->brfoffbyhw = false;
+ pwrpriv->bkeepfwalive = false;
+ pwrpriv->brfoffbyhw = false;
- pwrpriv->rf_pwrstate = rf_on;
- pwrpriv->bips_processing = false;
+ pwrpriv->rf_pwrstate = rf_on;
+ pwrpriv->bips_processing = false;
- _exit_pwrlock(&pwrpriv->lock);
- } else {
- goto error_exit;
- }
+ _exit_pwrlock(&pwrpriv->lock);
return 0;
@@ -591,8 +586,7 @@ int rtw_resume_process(struct adapter *padapter)
_enter_pwrlock(&pwrpriv->lock);
rtw_reset_drv_sw(padapter);
- if (pwrpriv)
- pwrpriv->bkeepfwalive = false;
+ pwrpriv->bkeepfwalive = false;
DBG_88E("bkeepfwalive(%x)\n", pwrpriv->bkeepfwalive);
if (pm_netdev_open(pnetdev, true) != 0)
--
1.7.10.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] staging: rtl8188eu: os_dep: usb_intf.c: Fix to remove null pointer checks that could never happen
2014-05-22 19:58 [PATCH] staging: rtl8188eu: os_dep: usb_intf.c: Fix to remove null pointer checks that could never happen Rickard Strandqvist
@ 2014-05-22 20:57 ` Dan Carpenter
2014-05-22 21:16 ` Josh Triplett
1 sibling, 0 replies; 3+ messages in thread
From: Dan Carpenter @ 2014-05-22 20:57 UTC (permalink / raw)
To: Rickard Strandqvist
Cc: Greg Kroah-Hartman, Larry Finger, devel, linux-kernel,
Josh Triplett, Geert Uytterhoeven, Manu Gupta
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
regards,
dan carpenter
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] staging: rtl8188eu: os_dep: usb_intf.c: Fix to remove null pointer checks that could never happen
2014-05-22 19:58 [PATCH] staging: rtl8188eu: os_dep: usb_intf.c: Fix to remove null pointer checks that could never happen Rickard Strandqvist
2014-05-22 20:57 ` Dan Carpenter
@ 2014-05-22 21:16 ` Josh Triplett
1 sibling, 0 replies; 3+ messages in thread
From: Josh Triplett @ 2014-05-22 21:16 UTC (permalink / raw)
To: Rickard Strandqvist
Cc: Greg Kroah-Hartman, Larry Finger, Manu Gupta, Geert Uytterhoeven,
devel, linux-kernel
On Thu, May 22, 2014 at 09:58:02PM +0200, Rickard Strandqvist wrote:
> Removal of null pointer checks that could never happen
>
> Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
> drivers/staging/rtl8188eu/os_dep/usb_intf.c | 110 +++++++++++++--------------
> 1 file changed, 52 insertions(+), 58 deletions(-)
>
> diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
> index 2e49cd5..3454e1b 100644
> --- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
> +++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
> @@ -396,49 +396,47 @@ int rtw_hw_suspend(struct adapter *padapter)
> goto error_exit;
> }
>
> - if (padapter) { /* system suspend */
> - LeaveAllPowerSaveMode(padapter);
> + /* system suspend */
> + LeaveAllPowerSaveMode(padapter);
>
> - DBG_88E("==> rtw_hw_suspend\n");
> - _enter_pwrlock(&pwrpriv->lock);
> - pwrpriv->bips_processing = true;
> - /* s1. */
> - if (pnetdev) {
> - netif_carrier_off(pnetdev);
> - rtw_netif_stop_queue(pnetdev);
> - }
> + DBG_88E("==> rtw_hw_suspend\n");
> + _enter_pwrlock(&pwrpriv->lock);
> + pwrpriv->bips_processing = true;
> + /* s1. */
> + if (pnetdev) {
> + netif_carrier_off(pnetdev);
> + rtw_netif_stop_queue(pnetdev);
> + }
>
> - /* s2. */
> - rtw_disassoc_cmd(padapter, 500, false);
> + /* s2. */
> + rtw_disassoc_cmd(padapter, 500, false);
>
> - /* s2-2. indicate disconnect to os */
> - {
> - struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
> + /* s2-2. indicate disconnect to os */
> + {
> + struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
>
> - if (check_fwstate(pmlmepriv, _FW_LINKED)) {
> - _clr_fwstate_(pmlmepriv, _FW_LINKED);
> + if (check_fwstate(pmlmepriv, _FW_LINKED)) {
> + _clr_fwstate_(pmlmepriv, _FW_LINKED);
>
> - rtw_led_control(padapter, LED_CTL_NO_LINK);
> + rtw_led_control(padapter, LED_CTL_NO_LINK);
>
> - rtw_os_indicate_disconnect(padapter);
> + rtw_os_indicate_disconnect(padapter);
>
> - /* donnot enqueue cmd */
> - rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 0);
> - }
> + /* donnot enqueue cmd */
> + rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 0);
> }
> - /* s2-3. */
> - rtw_free_assoc_resources(padapter, 1);
> + }
> + /* s2-3. */
> + rtw_free_assoc_resources(padapter, 1);
>
> - /* s2-4. */
> - rtw_free_network_queue(padapter, true);
> - rtw_ips_dev_unload(padapter);
> - pwrpriv->rf_pwrstate = rf_off;
> - pwrpriv->bips_processing = false;
> + /* s2-4. */
> + rtw_free_network_queue(padapter, true);
> + rtw_ips_dev_unload(padapter);
> + pwrpriv->rf_pwrstate = rf_off;
> + pwrpriv->bips_processing = false;
> +
> + _exit_pwrlock(&pwrpriv->lock);
>
> - _exit_pwrlock(&pwrpriv->lock);
> - } else {
> - goto error_exit;
> - }
> return 0;
>
> error_exit:
> @@ -452,35 +450,32 @@ int rtw_hw_resume(struct adapter *padapter)
> struct net_device *pnetdev = padapter->pnetdev;
>
>
> - if (padapter) { /* system resume */
> - DBG_88E("==> rtw_hw_resume\n");
> - _enter_pwrlock(&pwrpriv->lock);
> - pwrpriv->bips_processing = true;
> - rtw_reset_drv_sw(padapter);
> + /* system resume */
> + DBG_88E("==> rtw_hw_resume\n");
> + _enter_pwrlock(&pwrpriv->lock);
> + pwrpriv->bips_processing = true;
> + rtw_reset_drv_sw(padapter);
>
> - if (pm_netdev_open(pnetdev, false) != 0) {
> - _exit_pwrlock(&pwrpriv->lock);
> - goto error_exit;
> - }
> + if (pm_netdev_open(pnetdev, false) != 0) {
> + _exit_pwrlock(&pwrpriv->lock);
> + goto error_exit;
> + }
>
> - netif_device_attach(pnetdev);
> - netif_carrier_on(pnetdev);
> + netif_device_attach(pnetdev);
> + netif_carrier_on(pnetdev);
>
> - if (!netif_queue_stopped(pnetdev))
> - netif_start_queue(pnetdev);
> - else
> - netif_wake_queue(pnetdev);
> + if (!netif_queue_stopped(pnetdev))
> + netif_start_queue(pnetdev);
> + else
> + netif_wake_queue(pnetdev);
>
> - pwrpriv->bkeepfwalive = false;
> - pwrpriv->brfoffbyhw = false;
> + pwrpriv->bkeepfwalive = false;
> + pwrpriv->brfoffbyhw = false;
>
> - pwrpriv->rf_pwrstate = rf_on;
> - pwrpriv->bips_processing = false;
> + pwrpriv->rf_pwrstate = rf_on;
> + pwrpriv->bips_processing = false;
>
> - _exit_pwrlock(&pwrpriv->lock);
> - } else {
> - goto error_exit;
> - }
> + _exit_pwrlock(&pwrpriv->lock);
>
>
> return 0;
> @@ -591,8 +586,7 @@ int rtw_resume_process(struct adapter *padapter)
>
> _enter_pwrlock(&pwrpriv->lock);
> rtw_reset_drv_sw(padapter);
> - if (pwrpriv)
> - pwrpriv->bkeepfwalive = false;
> + pwrpriv->bkeepfwalive = false;
>
> DBG_88E("bkeepfwalive(%x)\n", pwrpriv->bkeepfwalive);
> if (pm_netdev_open(pnetdev, true) != 0)
> --
> 1.7.10.4
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-05-22 19:58 [PATCH] staging: rtl8188eu: os_dep: usb_intf.c: Fix to remove null pointer checks that could never happen Rickard Strandqvist
2014-05-22 20:57 ` Dan Carpenter
2014-05-22 21:16 ` Josh Triplett
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