linux-kernel - [PATCH] staging: r8188eu: remove useless check

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Message-Id: <20210905204218.19317-1-paskripkin@gmail.com>
Date:   Sun,  5 Sep 2021 23:42:18 +0300
From:   Pavel Skripkin <paskripkin@...il.com>
To:     Larry.Finger@...inger.net, phil@...lpotter.co.uk,
        gregkh@...uxfoundation.org, straube.linux@...il.com
Cc:     linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Pavel Skripkin <paskripkin@...il.com>
Subject: [PATCH] staging: r8188eu: remove useless check

smatch says:
usb_intf.c:326 rtw_hw_suspend() warn: variable dereferenced before check 'padapter' (see line 323)
usb_intf.c:387 rtw_hw_resume() warn: variable dereferenced before check 'padapter' (see line 385)

There is only one caller of rtw_hw_suspend() and it does not check
padapter pointer, so let's just omit this check to make smatch happy.

Signed-off-by: Pavel Skripkin <paskripkin@...il.com>
---
 drivers/staging/r8188eu/os_dep/usb_intf.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/staging/r8188eu/os_dep/usb_intf.c b/drivers/staging/r8188eu/os_dep/usb_intf.c
index bb85ab77fd26..42a375e7345c 100644
--- a/drivers/staging/r8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/r8188eu/os_dep/usb_intf.c
@@ -322,9 +322,6 @@ int rtw_hw_suspend(struct adapter *padapter)
 	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 	struct net_device *pnetdev = padapter->pnetdev;
 
-
-	if (!padapter)
-		goto error_exit;
 	if ((!padapter->bup) || (padapter->bDriverStopped) ||
 	    (padapter->bSurpriseRemoved)) {
 		DBG_88E("padapter->bup=%d bDriverStopped=%d bSurpriseRemoved = %d\n",
-- 
2.33.0