linux-kernel - [PATCH 1/4] staging: r8188eu: refactor status handling in usb_write_port

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Date:   Tue, 10 Jan 2023 21:56:23 +0100
From:   Martin Kaiser <martin@...ser.cx>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Michael Straube <straube.linux@...il.com>,
        Pavel Skripkin <paskripkin@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Martin Kaiser <martin@...ser.cx>
Subject: [PATCH 1/4] staging: r8188eu: refactor status handling in usb_write_port_complete

Refactor the satus handling in usb_write_port_complete. Make it clearer
what happens for each status and avoid all the goto statements.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 .../staging/r8188eu/os_dep/usb_ops_linux.c    | 29 +++++++++----------
 1 file changed, 14 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/r8188eu/os_dep/usb_ops_linux.c b/drivers/staging/r8188eu/os_dep/usb_ops_linux.c
index 257bcf496012..8494b80a08e5 100644
--- a/drivers/staging/r8188eu/os_dep/usb_ops_linux.c
+++ b/drivers/staging/r8188eu/os_dep/usb_ops_linux.c
@@ -48,21 +48,20 @@ static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
 	    padapter->bWritePortCancel)
 		goto check_completion;
 
-	if (purb->status) {
-		if (purb->status == -EINPROGRESS) {
-			goto check_completion;
-		} else if (purb->status == -ENOENT) {
-			goto check_completion;
-		} else if (purb->status == -ECONNRESET) {
-			goto check_completion;
-		} else if (purb->status == -ESHUTDOWN) {
-			padapter->bDriverStopped = true;
-			goto check_completion;
-		} else if ((purb->status != -EPIPE) && (purb->status != -EPROTO)) {
-			padapter->bSurpriseRemoved = true;
-
-			goto check_completion;
-		}
+	switch (purb->status) {
+	case 0:
+	case -EINPROGRESS:
+	case -ENOENT:
+	case -ECONNRESET:
+	case -EPIPE:
+	case -EPROTO:
+		break;
+	case -ESHUTDOWN:
+		padapter->bDriverStopped = true;
+		break;
+	default:
+		padapter->bSurpriseRemoved = true;
+		break;
 	}
 
 check_completion:
-- 
2.30.2