[PATCH RESEND] NFC: st21nfca: remove unnecessary variable and labels

[PATCH RESEND] NFC: st21nfca: remove unnecessary variable and labels

[samirweng1979]

From: wengjianfeng <wengjianfeng@yulong.com>

assign vlue (EIO/EPROTO) to variable r, and goto exit label,
but just return r follow exit label, so we delete exit label,
and just replace with return sentence.

Signed-off-by: wengjianfeng <wengjianfeng@yulong.com>
---
 drivers/nfc/st21nfca/dep.c | 59 ++++++++++++++--------------------------------
 1 file changed, 18 insertions(+), 41 deletions(-)

diff --git a/drivers/nfc/st21nfca/dep.c b/drivers/nfc/st21nfca/dep.c
index 8874d60..1ec651e 100644
--- a/drivers/nfc/st21nfca/dep.c
+++ b/drivers/nfc/st21nfca/dep.c
@@ -196,38 +196,29 @@ static int st21nfca_tm_recv_atr_req(struct nfc_hci_dev *hdev,
 
 	skb_trim(skb, skb->len - 1);
 
-	if (!skb->len) {
-		r = -EIO;
-		goto exit;
-	}
+	if (!skb->len)
+		return -EIO;
 
-	if (skb->len < ST21NFCA_ATR_REQ_MIN_SIZE) {
-		r = -EPROTO;
-		goto exit;
-	}
+	if (skb->len < ST21NFCA_ATR_REQ_MIN_SIZE)
+		return -EPROTO;
 
 	atr_req = (struct st21nfca_atr_req *)skb->data;
 
-	if (atr_req->length < sizeof(struct st21nfca_atr_req)) {
-		r = -EPROTO;
-		goto exit;
-	}
+	if (atr_req->length < sizeof(struct st21nfca_atr_req))
+		return -EPROTO;
 
 	r = st21nfca_tm_send_atr_res(hdev, atr_req);
 	if (r)
-		goto exit;
+		return r;
 
 	gb_len = skb->len - sizeof(struct st21nfca_atr_req);
 
 	r = nfc_tm_activated(hdev->ndev, NFC_PROTO_NFC_DEP_MASK,
 			      NFC_COMM_PASSIVE, atr_req->gbi, gb_len);
 	if (r)
-		goto exit;
-
-	r = 0;
+		return r;
 
-exit:
-	return r;
+	return 0;
 }
 
 static int st21nfca_tm_send_psl_res(struct nfc_hci_dev *hdev,
@@ -280,25 +271,18 @@ static int st21nfca_tm_recv_psl_req(struct nfc_hci_dev *hdev,
 				    struct sk_buff *skb)
 {
 	struct st21nfca_psl_req *psl_req;
-	int r;
 
 	skb_trim(skb, skb->len - 1);
 
-	if (!skb->len) {
-		r = -EIO;
-		goto exit;
-	}
+	if (!skb->len)
+		return -EIO;
 
 	psl_req = (struct st21nfca_psl_req *)skb->data;
 
-	if (skb->len < sizeof(struct st21nfca_psl_req)) {
-		r = -EIO;
-		goto exit;
-	}
+	if (skb->len < sizeof(struct st21nfca_psl_req))
+		return -EIO;
 
-	r = st21nfca_tm_send_psl_res(hdev, psl_req);
-exit:
-	return r;
+	return st21nfca_tm_send_psl_res(hdev, psl_req);
 }
 
 int st21nfca_tm_send_dep_res(struct nfc_hci_dev *hdev, struct sk_buff *skb)
@@ -324,7 +308,6 @@ static int st21nfca_tm_recv_dep_req(struct nfc_hci_dev *hdev,
 {
 	struct st21nfca_dep_req_res *dep_req;
 	u8 size;
-	int r;
 	struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
 
 	skb_trim(skb, skb->len - 1);
@@ -332,20 +315,16 @@ static int st21nfca_tm_recv_dep_req(struct nfc_hci_dev *hdev,
 	size = 4;
 
 	dep_req = (struct st21nfca_dep_req_res *)skb->data;
-	if (skb->len < size) {
-		r = -EIO;
-		goto exit;
-	}
+	if (skb->len < size)
+		return -EIO;
 
 	if (ST21NFCA_NFC_DEP_DID_BIT_SET(dep_req->pfb))
 		size++;
 	if (ST21NFCA_NFC_DEP_NAD_BIT_SET(dep_req->pfb))
 		size++;
 
-	if (skb->len < size) {
-		r = -EIO;
-		goto exit;
-	}
+	if (skb->len < size)
+		return -EIO;
 
 	/* Receiving DEP_REQ - Decoding */
 	switch (ST21NFCA_NFC_DEP_PFB_TYPE(dep_req->pfb)) {
@@ -364,8 +343,6 @@ static int st21nfca_tm_recv_dep_req(struct nfc_hci_dev *hdev,
 	skb_pull(skb, size);
 
 	return nfc_tm_data_received(hdev->ndev, skb);
-exit:
-	return r;
 }
 
 static int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev,
-- 
1.9.1

Re: [PATCH RESEND] NFC: st21nfca: remove unnecessary variable and labels

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Thu, 20 May 2021 09:05:50 +0800 you wrote:
> From: wengjianfeng <wengjianfeng@yulong.com>
> 
> assign vlue (EIO/EPROTO) to variable r, and goto exit label,
> but just return r follow exit label, so we delete exit label,
> and just replace with return sentence.
> 
> Signed-off-by: wengjianfeng <wengjianfeng@yulong.com>
> 
> [...]

Here is the summary with links:
  - [RESEND] NFC: st21nfca: remove unnecessary variable and labels
    https://git.kernel.org/netdev/net-next/c/4b99b7498277

You are awesome, thank you!
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