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.zh...@intel.com>
Signed-off-by: xiaoming wang <xiaoming.w...@intel.com>
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;
}
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