On Mon, Mar 10, 2014 at 11:37:44AM -0400, Wang, Xiaoming wrote:
> pcmd->parmbuf->pbuf has been allocated if command is GEN_CMD_CODE(_Set_Drv_Extra),
> and it enqueued by rtw_enqueue_cmd. rtw_cmd_thread dequeue pcmd by rtw_dequeue_cmd.
> The memory leak happened on this branch "if( _FAIL == rtw_cmd_filter(pcmdpriv, pcmd) )"
> which goto post_process directly against freeing pcmd->parmbuf->pbuf in
> rtw_drvextra_cmd_hdl which is the cmd_hdl if command is (_Set_Drv_Extra).
> This patch free pcmd->parmbuf->pbuf on the forgotten branch to avoid memory leak.
>
> Signed-off-by: Zhang Dongxing <dongxing.zhang@xxxxxxxxx>
> Signed-off-by: xiaoming wang <xiaoming.wang@xxxxxxxxx>
> Reviewed-by: Chuansheng Liu <chuansheng.liu@xxxxxxxxx>
>
> diff --git a/drivers/staging/rtl8188eu/core/rtw_cmd.c b/drivers/staging/rtl8188eu/core/rtw_cmd.c
> index c0a0a52..1c7f505 100644
> --- a/drivers/staging/rtl8188eu/core/rtw_cmd.c
> +++ b/drivers/staging/rtl8188eu/core/rtw_cmd.c
> @@ -288,7 +288,7 @@ int rtw_cmd_thread(void *context)
> void (*pcmd_callback)(struct adapter *dev, struct cmd_obj *pcmd);
> struct adapter *padapter = (struct adapter *)context;
> struct cmd_priv *pcmdpriv = &(padapter->cmdpriv);
> -
> + struct drvextra_cmd_parm *extra_parm = NULL;
>
> thread_enter("RTW_CMD_THREAD");
>
> @@ -323,6 +323,11 @@ _next:
>
> if (_FAIL == rtw_cmd_filter(pcmdpriv, pcmd)) {
> pcmd->res = H2C_DROPPED;
> + if (pcmd->cmdcode == GEN_CMD_CODE(_Set_Drv_Extra)) {
> + extra_parm = (struct drvextra_cmd_parm *)pcmd->parmbuf;
> + if (extra_parm && extra_parm->pbuf && extra_parm->size > 0)
> + rtw_mfree(extra_parm->pbuf, extra_parm->size);
> + }
> goto post_process;
> }
>
This patch has all the tabs converted to spaces and can not be applied
:(
Please fix your email client and try again.
greg k-h
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