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staging: rtl8188eu: always free cmd_obj in the cmd thread

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The rtl8188 driver starts a command thread that reads commands from a queue
and processes them. Each command consists of a struct cmd_obj. The command
thread may call a function to process the current command and optionally a
post-processing function. Eventually, the command's cmd_obj must be freed.

At the moment, if there's a post-processing function for the current
command, this function has to free the cmd_obj. If there's no
post-processing function, the command thread frees cmd_obj.

It's much simpler if we always leave it to the command thread to free
cmd_obj.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210408195601.4762-9-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Martin Kaiser 2021-04-08 21:55:58 +02:00 committed by Greg Kroah-Hartman
parent e2794029df
commit ddc7e53e5e
1 changed files with 3 additions and 21 deletions
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24
drivers/staging/rtl8188eu/core/rtw_cmd.c
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@ -235,17 +235,16 @@ int rtw_cmd_thread(void *context)
RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_,
("mlme_cmd_hdl(): pcmd_callback = 0x%p, cmdcode = 0x%x\n",
pcmd_callback, pcmd->cmdcode));
rtw_free_cmd_obj(pcmd);
} else {
/* todo: !!! fill rsp_buf to pcmd->rsp if (pcmd->rsp!= NULL) */
pcmd_callback(pcmd->padapter, pcmd);/* need consider that free cmd_obj in rtw_cmd_callback */
pcmd_callback(pcmd->padapter, pcmd);
}
} else {
RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
("%s: cmdcode = 0x%x callback not defined!\n",
__func__, pcmd->cmdcode));
rtw_free_cmd_obj(pcmd);
}
rtw_free_cmd_obj(pcmd);
if (signal_pending(current))
flush_signals(current);
@ -1186,9 +1185,6 @@ void rtw_survey_cmd_callback(struct adapter *padapter, struct cmd_obj *pcmd)
RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
("\n ********Error: MgntActrtw_set_802_11_bssid_LIST_SCAN Fail ************\n\n."));
}
/* free cmd */
rtw_free_cmd_obj(pcmd);
}
void rtw_disassoc_cmd_callback(struct adapter *padapter, struct cmd_obj *pcmd)
@ -1202,11 +1198,7 @@ void rtw_disassoc_cmd_callback(struct adapter *padapter, struct cmd_obj *pcmd)
RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
("\n ***Error: disconnect_cmd_callback Fail ***\n."));
return;
}
/* free cmd */
rtw_free_cmd_obj(pcmd);
}
void rtw_joinbss_cmd_callback(struct adapter *padapter, struct cmd_obj *pcmd)
@ -1224,8 +1216,6 @@ void rtw_joinbss_cmd_callback(struct adapter *padapter, struct cmd_obj *pcmd)
mod_timer(&pmlmepriv->assoc_timer,
jiffies + msecs_to_jiffies(1));
}
rtw_free_cmd_obj(pcmd);
}
void rtw_createbss_cmd_callback(struct adapter *padapter, struct cmd_obj *pcmd)
@ -1292,8 +1282,6 @@ void rtw_createbss_cmd_callback(struct adapter *padapter, struct cmd_obj *pcmd)
createbss_cmd_fail:
spin_unlock_bh(&pmlmepriv->lock);
rtw_free_cmd_obj(pcmd);
}
void rtw_setstaKey_cmdrsp_callback(struct adapter *padapter, struct cmd_obj *pcmd)
@ -1305,10 +1293,7 @@ void rtw_setstaKey_cmdrsp_callback(struct adapter *padapter, struct cmd_obj *pc
if (!psta) {
RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
("\nERROR: %s => can't get sta_info\n\n", __func__));
goto exit;
}
exit:
rtw_free_cmd_obj(pcmd);
}
void rtw_setassocsta_cmdrsp_callback(struct adapter *padapter, struct cmd_obj *pcmd)
@ -1322,7 +1307,7 @@ void rtw_setassocsta_cmdrsp_callback(struct adapter *padapter, struct cmd_obj *
if (!psta) {
RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
("\nERROR: %s => can't get sta_info\n\n", __func__));
goto exit;
return;
}
psta->aid = passocsta_rsp->cam_id;
@ -1332,7 +1317,4 @@ void rtw_setassocsta_cmdrsp_callback(struct adapter *padapter, struct cmd_obj *
set_fwstate(pmlmepriv, _FW_LINKED);
spin_unlock_bh(&pmlmepriv->lock);
exit:
rtw_free_cmd_obj(pcmd);
}