From: Xiaoke Wang <xkernel.wang@xxxxxxxxxxx> In r8712_init_drv_sw(), there are various error paths do not properly release the previous allocated resources but directly return the error status, which leads to various memory leaks. To properly release the resources, this patch unifies the error handler of r8712_init_drv_sw(). According to the allocation sequence, if the init function returns failure, it will jump to the corresponding error tag. Signed-off-by: Xiaoke Wang <xkernel.wang@xxxxxxxxxxx> --- ChangeLog: v1->v2 adjust the sequence of the patches in this series. v2->v3 update the description. drivers/staging/rtl8712/os_intfs.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c index 9502f6a..1f7ccec 100644 --- a/drivers/staging/rtl8712/os_intfs.c +++ b/drivers/staging/rtl8712/os_intfs.c @@ -304,10 +304,10 @@ int r8712_init_drv_sw(struct _adapter *padapter) padapter->cmdpriv.padapter = padapter; ret = r8712_init_evt_priv(&padapter->evtpriv); if (ret) - return ret; + goto free_cmd_priv; ret = r8712_init_mlme_priv(padapter); if (ret) - return ret; + goto free_evt_priv; _r8712_init_xmit_priv(&padapter->xmitpriv, padapter); _r8712_init_recv_priv(&padapter->recvpriv, padapter); memset((unsigned char *)&padapter->securitypriv, 0, @@ -316,13 +316,25 @@ int r8712_init_drv_sw(struct _adapter *padapter) r8712_use_tkipkey_handler, 0); ret = _r8712_init_sta_priv(&padapter->stapriv); if (ret) - return ret; + goto free_recv_priv; padapter->stapriv.padapter = padapter; r8712_init_bcmc_stainfo(padapter); r8712_init_pwrctrl_priv(padapter); mp871xinit(padapter); init_default_value(padapter); r8712_InitSwLeds(padapter); + return 0; + +free_recv_priv: + _r8712_free_recv_priv(&padapter->recvpriv); +free_xmit_priv: + _free_xmit_priv(&padapter->xmitpriv); +free_mlme_priv: + r8712_free_mlme_priv(&padapter->mlmepriv); +free_evt_priv: + r8712_free_evt_priv(&padapter->evtpriv); +free_cmd_priv: + r8712_free_cmd_priv(&padapter->cmdpriv); return ret; } --
