linux-kernel - [PATCH] staging: r8188eu: clean up error handling in rtw_start_drv

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Date:   Sun,  6 Nov 2022 14:34:43 +0100
From:   Michael Straube <straube.linux@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, phil@...lpotter.co.uk,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Michael Straube <straube.linux@...il.com>
Subject: [PATCH] staging: r8188eu: clean up error handling in rtw_start_drv_threads()

Convert the error handling in the function rtw_start_drv_threads() to
the common logic used in the kernel. Another step to get rid of _FAIL
and _SUCCESS which uses inverted logic.

Signed-off-by: Michael Straube <straube.linux@...il.com>
---
 drivers/staging/r8188eu/include/osdep_intf.h |  2 +-
 drivers/staging/r8188eu/os_dep/os_intfs.c    | 17 +++++++----------
 2 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/r8188eu/include/osdep_intf.h b/drivers/staging/r8188eu/include/osdep_intf.h
index 0f7d74a3ff6d..6d66cb57225e 100644
--- a/drivers/staging/r8188eu/include/osdep_intf.h
+++ b/drivers/staging/r8188eu/include/osdep_intf.h
@@ -46,7 +46,7 @@ u8 rtw_init_drv_sw(struct adapter *padapter);
 void rtw_free_drv_sw(struct adapter *padapter);
 void rtw_reset_drv_sw(struct adapter *padapter);
 
-u32 rtw_start_drv_threads(struct adapter *padapter);
+int rtw_start_drv_threads(struct adapter *padapter);
 void rtw_stop_drv_threads (struct adapter *padapter);
 void rtw_cancel_all_timer(struct adapter *padapter);
 
diff --git a/drivers/staging/r8188eu/os_dep/os_intfs.c b/drivers/staging/r8188eu/os_dep/os_intfs.c
index 970f380bac96..66556e07ed93 100644
--- a/drivers/staging/r8188eu/os_dep/os_intfs.c
+++ b/drivers/staging/r8188eu/os_dep/os_intfs.c
@@ -363,18 +363,16 @@ struct net_device *rtw_init_netdev(struct adapter *old_padapter)
 	return pnetdev;
 }
 
-u32 rtw_start_drv_threads(struct adapter *padapter)
+int rtw_start_drv_threads(struct adapter *padapter)
 {
-	u32 _status = _SUCCESS;
-
 	padapter->cmdThread = kthread_run(rtw_cmd_thread, padapter, "RTW_CMD_THREAD");
 	if (IS_ERR(padapter->cmdThread))
-		_status = _FAIL;
-	else
-		/* wait for rtw_cmd_thread() to start running */
-		wait_for_completion(&padapter->cmdpriv.start_cmd_thread);
+		return PTR_ERR(padapter->cmdThread);
 
-	return _status;
+	/* wait for rtw_cmd_thread() to start running */
+	wait_for_completion(&padapter->cmdpriv.start_cmd_thread);
+
+	return 0;
 }
 
 void rtw_stop_drv_threads(struct adapter *padapter)
@@ -627,8 +625,7 @@ static int _netdev_open(struct net_device *pnetdev)
 
 		netdev_dbg(pnetdev, "MAC Address = %pM\n", pnetdev->dev_addr);
 
-		status = rtw_start_drv_threads(padapter);
-		if (status == _FAIL) {
+		if (rtw_start_drv_threads(padapter)) {
 			pr_info("Initialize driver software resource Failed!\n");
 			goto netdev_open_error;
 		}
-- 
2.38.0