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staging: rtl8188eu: rtw_cmd: Clean up tests if NULL returned on failure

Browse source 
Some functions like kmalloc/kzalloc return NULL on failure.
When NULL represents failure, !x is commonly used.

This was done using Coccinelle:

@@
expression *e;
identifier l1;
@@

e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...);
...
- e == NULL
+ !e

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bhaktipriya Shridhar 2016-03-22 20:28:28 +05:30 committed by Greg Kroah-Hartman
parent 4d97b69147
commit 12f037ece3
1 changed files with 22 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

44
drivers/staging/rtl8188eu/core/rtw_cmd.c
View file

@ -258,11 +258,11 @@ u8 rtw_sitesurvey_cmd(struct adapter *padapter, struct ndis_802_11_ssid *ssid,
rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_SCAN, 1);
ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
if (ph2c == NULL)
if (!ph2c)
return _FAIL;
psurveyPara = kzalloc(sizeof(struct sitesurvey_parm), GFP_ATOMIC);
if (psurveyPara == NULL) {
if (!psurveyPara) {
kfree(ph2c);
return _FAIL;
}
@ -345,7 +345,7 @@ u8 rtw_createbss_cmd(struct adapter *padapter)
RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_, (" createbss for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
if (pcmd == NULL) {
if (!pcmd) {
res = _FAIL;
goto exit;
}
@ -516,7 +516,7 @@ u8 rtw_disassoc_cmd(struct adapter *padapter, u32 deauth_timeout_ms, bool enqueu
/* prepare cmd parameter */
param = kzalloc(sizeof(*param), GFP_KERNEL);
if (param == NULL) {
if (!param) {
res = _FAIL;
goto exit;
}
@ -525,7 +525,7 @@ u8 rtw_disassoc_cmd(struct adapter *padapter, u32 deauth_timeout_ms, bool enqueu
if (enqueue) {
/* need enqueue, prepare cmd_obj and enqueue */
cmdobj = kzalloc(sizeof(*cmdobj), GFP_KERNEL);
if (cmdobj == NULL) {
if (!cmdobj) {
res = _FAIL;
kfree(param);
goto exit;
@ -624,20 +624,20 @@ u8 rtw_clearstakey_cmd(struct adapter *padapter, u8 *psta, u8 entry, u8 enqueue)
clear_cam_entry(padapter, entry);
} else {
ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
if (ph2c == NULL) {
if (!ph2c) {
res = _FAIL;
goto exit;
}
psetstakey_para = kzalloc(sizeof(struct set_stakey_parm), GFP_ATOMIC);
if (psetstakey_para == NULL) {
if (!psetstakey_para) {
kfree(ph2c);
res = _FAIL;
goto exit;
}
psetstakey_rsp = kzalloc(sizeof(struct set_stakey_rsp), GFP_ATOMIC);
if (psetstakey_rsp == NULL) {
if (!psetstakey_rsp) {
kfree(ph2c);
kfree(psetstakey_para);
res = _FAIL;
@ -671,13 +671,13 @@ u8 rtw_addbareq_cmd(struct adapter *padapter, u8 tid, u8 *addr)
ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
if (ph2c == NULL) {
if (!ph2c) {
res = _FAIL;
goto exit;
}
paddbareq_parm = kzalloc(sizeof(struct addBaReq_parm), GFP_KERNEL);
if (paddbareq_parm == NULL) {
if (!paddbareq_parm) {
kfree(ph2c);
res = _FAIL;
goto exit;
@ -708,13 +708,13 @@ u8 rtw_dynamic_chk_wk_cmd(struct adapter *padapter)
ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
if (ph2c == NULL) {
if (!ph2c) {
res = _FAIL;
goto exit;
}
pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_ATOMIC);
if (pdrvextra_cmd_parm == NULL) {
if (!pdrvextra_cmd_parm) {
kfree(ph2c);
res = _FAIL;
goto exit;
@ -752,7 +752,7 @@ u8 rtw_set_chplan_cmd(struct adapter *padapter, u8 chplan, u8 enqueue)
/* prepare cmd parameter */
setChannelPlan_param = kzalloc(sizeof(struct SetChannelPlan_param), GFP_KERNEL);
if (setChannelPlan_param == NULL) {
if (!setChannelPlan_param) {
res = _FAIL;
goto exit;
}
@ -761,7 +761,7 @@ u8 rtw_set_chplan_cmd(struct adapter *padapter, u8 chplan, u8 enqueue)
if (enqueue) {
/* need enqueue, prepare cmd_obj and enqueue */
pcmdobj = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
if (pcmdobj == NULL) {
if (!pcmdobj) {
kfree(setChannelPlan_param);
res = _FAIL;
goto exit;
@ -920,13 +920,13 @@ u8 rtw_lps_ctrl_wk_cmd(struct adapter *padapter, u8 lps_ctrl_type, u8 enqueue)
if (enqueue) {
ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
if (ph2c == NULL) {
if (!ph2c) {
res = _FAIL;
goto exit;
}
pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_ATOMIC);
if (pdrvextra_cmd_parm == NULL) {
if (!pdrvextra_cmd_parm) {
kfree(ph2c);
res = _FAIL;
goto exit;
@ -963,13 +963,13 @@ u8 rtw_rpt_timer_cfg_cmd(struct adapter *padapter, u16 min_time)
u8 res = _SUCCESS;
ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
if (ph2c == NULL) {
if (!ph2c) {
res = _FAIL;
goto exit;
}
pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_ATOMIC);
if (pdrvextra_cmd_parm == NULL) {
if (!pdrvextra_cmd_parm) {
kfree(ph2c);
res = _FAIL;
goto exit;
@ -1005,13 +1005,13 @@ u8 rtw_antenna_select_cmd(struct adapter *padapter, u8 antenna, u8 enqueue)
if (enqueue) {
ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
if (ph2c == NULL) {
if (!ph2c) {
res = _FAIL;
goto exit;
}
pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_KERNEL);
if (pdrvextra_cmd_parm == NULL) {
if (!pdrvextra_cmd_parm) {
kfree(ph2c);
res = _FAIL;
goto exit;
@ -1103,13 +1103,13 @@ u8 rtw_chk_hi_queue_cmd(struct adapter *padapter)
u8 res = _SUCCESS;
ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
if (ph2c == NULL) {
if (!ph2c) {
res = _FAIL;
goto exit;
}
pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_KERNEL);
if (pdrvextra_cmd_parm == NULL) {
if (!pdrvextra_cmd_parm) {
kfree(ph2c);
res = _FAIL;
goto exit;