From a395298c9c96748cbd6acee4cb9a5ba13fbb3ab8 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Sat, 25 May 2013 01:21:21 +0200
Subject: [PATCH] NFC: HCI: Follow a positive code path in the HCI ops
implementations
Exiting on the error case is more typical to the kernel coding style.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
net/nfc/hci/core.c | 36 ++++++++++++++++++------------------
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index b7e4dac5654ec..d2ef1e2ee0c69 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -570,21 +570,21 @@ static int hci_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
{
struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
- if (hdev->ops->dep_link_up)
- return hdev->ops->dep_link_up(hdev, target, comm_mode,
- gb, gb_len);
+ if (!hdev->ops->dep_link_up)
+ return 0;
- return 0;
+ return hdev->ops->dep_link_up(hdev, target, comm_mode,
+ gb, gb_len);
}
static int hci_dep_link_down(struct nfc_dev *nfc_dev)
{
struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
- if (hdev->ops->dep_link_down)
- return hdev->ops->dep_link_down(hdev);
+ if (!hdev->ops->dep_link_down)
+ return 0;
- return 0;
+ return hdev->ops->dep_link_down(hdev);
}
static int hci_activate_target(struct nfc_dev *nfc_dev,
@@ -673,12 +673,12 @@ static int hci_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
{
struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
- if (hdev->ops->tm_send)
- return hdev->ops->tm_send(hdev, skb);
-
- kfree_skb(skb);
+ if (!hdev->ops->tm_send) {
+ kfree_skb(skb);
+ return -ENOTSUPP;
+ }
- return -ENOTSUPP;
+ return hdev->ops->tm_send(hdev, skb);
}
static int hci_check_presence(struct nfc_dev *nfc_dev,
@@ -686,10 +686,10 @@ static int hci_check_presence(struct nfc_dev *nfc_dev,
{
struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
- if (hdev->ops->check_presence)
- return hdev->ops->check_presence(hdev, target);
+ if (!hdev->ops->check_presence)
+ return 0;
- return 0;
+ return hdev->ops->check_presence(hdev, target);
}
static void nfc_hci_failure(struct nfc_hci_dev *hdev, int err)
@@ -783,10 +783,10 @@ static int hci_fw_upload(struct nfc_dev *nfc_dev, const char *firmware_name)
{
struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
- if (hdev->ops->fw_upload)
- return hdev->ops->fw_upload(hdev, firmware_name);
+ if (!hdev->ops->fw_upload)
+ return -ENOTSUPP;
- return -ENOTSUPP;
+ return hdev->ops->fw_upload(hdev, firmware_name);
}
static struct nfc_ops hci_nfc_ops = {
--
2.30.2