linux-kernel - [PATCH 2/4] staging: r8188eu: convert rtw_xmit_resource

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Date:   Fri, 11 Nov 2022 09:37:31 +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 2/4] staging: r8188eu: convert rtw_xmit_resource_alloc() to common error logic

Convert the function rtw_xmit_resource_alloc() away from returning
_FAIL or _SUCCESS which uses inverted error logic. Use the common
error logic instead. Return 0 for success and negative values for
failure.

Signed-off-by: Michael Straube <straube.linux@...il.com>
---
 drivers/staging/r8188eu/core/rtw_xmit.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_xmit.c b/drivers/staging/r8188eu/core/rtw_xmit.c
index bd6c1a401c59..c0fda6ce7c56 100644
--- a/drivers/staging/r8188eu/core/rtw_xmit.c
+++ b/drivers/staging/r8188eu/core/rtw_xmit.c
@@ -38,7 +38,7 @@ static int rtw_xmit_resource_alloc(struct adapter *padapter, struct xmit_buf *px
 {
 	pxmitbuf->pallocated_buf = kzalloc(alloc_sz, GFP_KERNEL);
 	if (!pxmitbuf->pallocated_buf)
-		return _FAIL;
+		return -ENOMEM;
 
 	pxmitbuf->pbuf = (u8 *)ALIGN((size_t)(pxmitbuf->pallocated_buf), XMITBUF_ALIGN_SZ);
 	pxmitbuf->dma_transfer_addr = 0;
@@ -46,10 +46,10 @@ static int rtw_xmit_resource_alloc(struct adapter *padapter, struct xmit_buf *px
 	pxmitbuf->pxmit_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!pxmitbuf->pxmit_urb) {
 		kfree(pxmitbuf->pallocated_buf);
-		return _FAIL;
+		return -ENOMEM;
 	}
 
-	return _SUCCESS;
+	return 0;
 }
 
 static void rtw_xmit_resource_free(struct adapter *padapter, struct xmit_buf *pxmitbuf,
@@ -151,12 +151,12 @@ s32	_rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
 		pxmitbuf->ext_tag = false;
 
 		/* Tx buf allocation may fail sometimes, so sleep and retry. */
-		res = rtw_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
-		if (res == _FAIL) {
+		if (rtw_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ))) {
 			msleep(10);
-			res = rtw_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ));
-			if (res == _FAIL)
+			if (rtw_xmit_resource_alloc(padapter, pxmitbuf, (MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ))) {
+				res = _FAIL;
 				goto free_xmitbuf;
+			}
 		}
 
 		pxmitbuf->flags = XMIT_VO_QUEUE;
@@ -188,8 +188,7 @@ s32	_rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
 		pxmitbuf->padapter = padapter;
 		pxmitbuf->ext_tag = true;
 
-		res = rtw_xmit_resource_alloc(padapter, pxmitbuf, max_xmit_extbuf_size + XMITBUF_ALIGN_SZ);
-		if (res == _FAIL) {
+		if (rtw_xmit_resource_alloc(padapter, pxmitbuf, max_xmit_extbuf_size + XMITBUF_ALIGN_SZ)) {
 			res = _FAIL;
 			goto free_xmit_extbuf;
 		}
-- 
2.38.1