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Reorganize error handling in rtw_drv_init()

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Looking at the error function as a whole, the error handling is odd
compared to the rest of the kernel, which prefers to set error codes on
goto paths, rather than a global "status" variable which determines the
error code at the end of the function and function calls in the case of
error.

Rearrange the error handling of this function to bring it more inline
with how the kernel does it in most cases, which helps readability.

Link: https://lore.kernel.org/r/20210812204027.338872-4-nathan@kernel.org
Link: https://lore.kernel.org/r/20210813201418.4018631-1-nathan@kernel.org
This commit is contained in:
Nathan Chancellor 2021-08-12 13:40:27 -07:00 committed by Carlos Garcés
parent 8d93cdeefa
commit c597fa83da
1 changed files with 11 additions and 21 deletions
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32
os_dep/linux/usb_intf.c
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@ -1471,7 +1471,6 @@ static void rtw_usb_primary_adapter_deinit(_adapter *padapter)
static int rtw_drv_init(struct usb_interface *pusb_intf, const struct usb_device_id *pdid)
{
_adapter *padapter = NULL;
int status = _FAIL;
struct dvobj_priv *dvobj;
#ifdef CONFIG_CONCURRENT_MODE
int i;
@ -1484,8 +1483,8 @@ static int rtw_drv_init(struct usb_interface *pusb_intf, const struct usb_device
/* Initialize dvobj_priv */
dvobj = usb_dvobj_init(pusb_intf, pdid);
if (dvobj == NULL) {
goto exit;
if (!dvobj) {
goto err;
}
padapter = rtw_usb_primary_adapter_init(dvobj, pusb_intf);
@ -1534,30 +1533,21 @@ static int rtw_drv_init(struct usb_interface *pusb_intf, const struct usb_device
#endif
status = _SUCCESS;
return 0;
#if 0 /* not used now */
os_ndevs_deinit:
if (status != _SUCCESS)
rtw_os_ndevs_deinit(dvobj);
#endif
free_if_vir:
if (status != _SUCCESS) {
#ifdef CONFIG_CONCURRENT_MODE
rtw_drv_stop_vir_ifaces(dvobj);
rtw_drv_free_vir_ifaces(dvobj);
#endif
}
#ifdef CONFIG_CONCURRENT_MODE
rtw_drv_stop_vir_ifaces(dvobj);
rtw_drv_free_vir_ifaces(dvobj);
#endif
free_if_prim:
if (status != _SUCCESS && padapter)
rtw_usb_primary_adapter_deinit(padapter);
rtw_usb_primary_adapter_deinit(padapter);
free_dvobj:
if (status != _SUCCESS)
usb_dvobj_deinit(pusb_intf);
exit:
return status == _SUCCESS ? 0 : -ENODEV;
usb_dvobj_deinit(pusb_intf);
err:
return -ENODEV;
}
/*