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Date: Sun, 26 Feb 2017 22:10:01 +0200
From: Avraham Shukron <avraham.shukron@...il.com>
To: jikos@...nel.org, benjamin.tissoires@...hat.com
Cc: linux-usb@...r.kernel.org, linux-input@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] hid: usbhid: hiddev.c: fix checkpatch.pl errors
- Extracted assignments out of 'if' statements
- Removed unnecessary spaces
- Broke long lines
- Added empty lines after declarations
Signed-off-by: Avraham Shukron <avraham.shukron@...il.com>
---
drivers/hid/usbhid/hiddev.c | 51 ++++++++++++++++++++++++++++++---------------
1 file changed, 34 insertions(+), 17 deletions(-)
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 700145b..a75ff0a 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -60,7 +60,7 @@ struct hiddev_list {
struct hiddev_usage_ref buffer[HIDDEV_BUFFER_SIZE];
int head;
int tail;
- unsigned flags;
+ unsigned int flags;
struct fasync_struct *fasync;
struct hiddev *hiddev;
struct list_head node;
@@ -187,7 +187,7 @@ static void hiddev_send_event(struct hid_device *hid,
void hiddev_hid_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
- unsigned type = field->report_type;
+ unsigned int type = field->report_type;
struct hiddev_usage_ref uref;
uref.report_type =
@@ -206,7 +206,7 @@ EXPORT_SYMBOL_GPL(hiddev_hid_event);
void hiddev_report_event(struct hid_device *hid, struct hid_report *report)
{
- unsigned type = report->type;
+ unsigned int type = report->type;
struct hiddev_usage_ref uref;
memset(&uref, 0, sizeof(uref));
@@ -234,7 +234,7 @@ static int hiddev_fasync(int fd, struct file *file, int on)
/*
* release file op
*/
-static int hiddev_release(struct inode * inode, struct file * file)
+static int hiddev_release(struct inode *inode, struct file *file)
{
struct hiddev_list *list = file->private_data;
unsigned long flags;
@@ -279,7 +279,8 @@ static int hiddev_open(struct inode *inode, struct file *file)
hid = usb_get_intfdata(intf);
hiddev = hid->hiddev;
- if (!(list = vzalloc(sizeof(struct hiddev_list))))
+ list = vzalloc(sizeof(struct hiddev_list));
+ if (!list)
return -ENOMEM;
mutex_init(&list->thread_lock);
list->hiddev = hiddev;
@@ -310,6 +311,7 @@ static int hiddev_open(struct inode *inode, struct file *file)
if (!list->hiddev->open++)
if (list->hiddev->exist) {
struct hid_device *hid = hiddev->hid;
+
res = usbhid_get_power(hid);
if (res < 0) {
res = -EIO;
@@ -330,7 +332,8 @@ static int hiddev_open(struct inode *inode, struct file *file)
/*
* "write" file op
*/
-static ssize_t hiddev_write(struct file * file, const char __user * buffer, size_t count, loff_t *ppos)
+static ssize_t hiddev_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
{
return -EINVAL;
}
@@ -338,7 +341,8 @@ static ssize_t hiddev_write(struct file * file, const char __user * buffer, size
/*
* "read" file op
*/
-static ssize_t hiddev_read(struct file * file, char __user * buffer, size_t count, loff_t *ppos)
+static ssize_t hiddev_read(struct file *file, char __user *buffer,
+ size_t count, loff_t *ppos)
{
DEFINE_WAIT(wait);
struct hiddev_list *list = file->private_data;
@@ -358,7 +362,8 @@ static ssize_t hiddev_read(struct file * file, char __user * buffer, size_t coun
while (retval == 0) {
if (list->head == list->tail) {
- prepare_to_wait(&list->hiddev->wait, &wait, TASK_INTERRUPTIBLE);
+ prepare_to_wait(&list->hiddev->wait,
+ &wait, TASK_INTERRUPTIBLE);
while (list->head == list->tail) {
if (signal_pending(current)) {
@@ -446,7 +451,8 @@ static unsigned int hiddev_poll(struct file *file, poll_table *wait)
/*
* "ioctl" file op
*/
-static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd, void __user *user_arg)
+static noinline int hiddev_ioctl_usage(struct hiddev *hiddev,
+ unsigned int cmd, void __user *user_arg)
{
struct hid_device *hid = hiddev->hid;
struct hiddev_report_info rinfo;
@@ -473,7 +479,8 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd,
case HIDIOCGUCODE:
rinfo.report_type = uref->report_type;
rinfo.report_id = uref->report_id;
- if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)
+ report = hiddev_lookup_report(hid, &rinfo);
+ if (report == NULL)
goto inval;
if (uref->field_index >= report->maxfield)
@@ -503,7 +510,8 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd,
} else {
rinfo.report_type = uref->report_type;
rinfo.report_id = uref->report_id;
- if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)
+ report = hiddev_lookup_report(hid, &rinfo);
+ if (report == NULL)
goto inval;
if (uref->field_index >= report->maxfield)
@@ -565,7 +573,8 @@ static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd,
}
}
-static noinline int hiddev_ioctl_string(struct hiddev *hiddev, unsigned int cmd, void __user *user_arg)
+static noinline int hiddev_ioctl_string(struct hiddev *hiddev,
+ unsigned int cmd, void __user *user_arg)
{
struct hid_device *hid = hiddev->hid;
struct usb_device *dev = hid_to_usb_dev(hid);
@@ -575,10 +584,12 @@ static noinline int hiddev_ioctl_string(struct hiddev *hiddev, unsigned int cmd,
if (get_user(idx, (int __user *)user_arg))
return -EFAULT;
- if ((buf = kmalloc(HID_STRING_SIZE, GFP_KERNEL)) == NULL)
+ buf = kmalloc(HID_STRING_SIZE, GFP_KERNEL);
+ if (buf == NULL)
return -ENOMEM;
- if ((len = usb_string(dev, idx, buf, HID_STRING_SIZE-1)) < 0) {
+ len = usb_string(dev, idx, buf, HID_STRING_SIZE-1);
+ if (len < 0) {
kfree(buf);
return -EINVAL;
}
@@ -816,8 +827,10 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGNAME(0))) {
int len = strlen(hid->name) + 1;
+
if (len > _IOC_SIZE(cmd))
- len = _IOC_SIZE(cmd);
+ len = _IOC_SIZE(cmd);
+
r = copy_to_user(user_arg, hid->name, len) ?
-EFAULT : len;
break;
@@ -825,6 +838,7 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGPHYS(0))) {
int len = strlen(hid->phys) + 1;
+
if (len > _IOC_SIZE(cmd))
len = _IOC_SIZE(cmd);
r = copy_to_user(user_arg, hid->phys, len) ?
@@ -839,7 +853,8 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
}
#ifdef CONFIG_COMPAT
-static long hiddev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static long hiddev_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
{
return hiddev_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
}
@@ -883,6 +898,7 @@ int hiddev_connect(struct hid_device *hid, unsigned int force)
if (!force) {
unsigned int i;
+
for (i = 0; i < hid->maxcollection; i++)
if (hid->collection[i].type ==
HID_COLLECTION_APPLICATION &&
@@ -893,7 +909,8 @@ int hiddev_connect(struct hid_device *hid, unsigned int force)
return -1;
}
- if (!(hiddev = kzalloc(sizeof(struct hiddev), GFP_KERNEL)))
+ hiddev = kzalloc(sizeof(struct hiddev), GFP_KERNEL);
+ if (!hiddev)
return -1;
init_waitqueue_head(&hiddev->wait);
--
2.7.4
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