From d2a1cfebe38edc0bbac8f5cfbce062fe3d146d7a Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Sun, 27 Mar 2011 20:29:02 +0200 Subject: HID: hidraw: fix comments Adjust the comments a little bit. Signed-off-by: Jiri Kosina --- drivers/hid/hidraw.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers/hid/hidraw.c') diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index 54409cba018c..93c72e593701 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -101,8 +101,8 @@ out: return ret; } -/* the first byte is expected to be a report number */ -/* This function is to be called with the minors_lock mutex held */ +/* The first byte is expected to be a report number. + * This function is to be called with the minors_lock mutex held */ static ssize_t hidraw_send_report(struct file *file, const char __user *buffer, size_t count, unsigned char report_type) { unsigned int minor = iminor(file->f_path.dentry->d_inode); @@ -166,11 +166,11 @@ static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t /* This function performs a Get_Report transfer over the control endpoint - per section 7.2.1 of the HID specification, version 1.1. The first byte - of buffer is the report number to request, or 0x0 if the defice does not - use numbered reports. The report_type parameter can be HID_FEATURE_REPORT - or HID_INPUT_REPORT. This function is to be called with the minors_lock - mutex held. */ + * per section 7.2.1 of the HID specification, version 1.1. The first byte + * of buffer is the report number to request, or 0x0 if the defice does not + * use numbered reports. The report_type parameter can be HID_FEATURE_REPORT + * or HID_INPUT_REPORT. This function is to be called with the minors_lock + * mutex held. */ static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t count, unsigned char report_type) { unsigned int minor = iminor(file->f_path.dentry->d_inode); @@ -207,7 +207,7 @@ static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t } /* Read the first byte from the user. This is the report number, - which is passed to dev->hid_get_raw_report(). */ + * which is passed to dev->hid_get_raw_report(). */ if (copy_from_user(&report_number, buffer, 1)) { ret = -EFAULT; goto out_free; -- cgit v1.2.3 From dd2ed487fdd78b50549b2ca8418875c0d9f4a30e Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Sun, 15 May 2011 18:07:42 +0200 Subject: HID: 'name' and 'phys' in 'struct hid_device' can never be NULL As they are static members of fix size, there is no need to NULL-check them. Signed-off-by: Daniel Mack Cc: Dmitry Torokhov Cc: Jiri Kosina Signed-off-by: Jiri Kosina --- drivers/hid/hidraw.c | 14 ++------------ drivers/hid/usbhid/hiddev.c | 18 ++---------------- 2 files changed, 4 insertions(+), 28 deletions(-) (limited to 'drivers/hid/hidraw.c') diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index 93c72e593701..c79578b5a788 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -395,12 +395,7 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd, } if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWNAME(0))) { - int len; - if (!hid->name) { - ret = 0; - break; - } - len = strlen(hid->name) + 1; + int len = strlen(hid->name) + 1; if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd); ret = copy_to_user(user_arg, hid->name, len) ? @@ -409,12 +404,7 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd, } if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGRAWPHYS(0))) { - int len; - if (!hid->phys) { - ret = 0; - break; - } - len = strlen(hid->phys) + 1; + int len = strlen(hid->phys) + 1; if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd); ret = copy_to_user(user_arg, hid->phys, len) ? diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c index 527003188bfe..2baa71e6cc29 100644 --- a/drivers/hid/usbhid/hiddev.c +++ b/drivers/hid/usbhid/hiddev.c @@ -801,14 +801,7 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) break; if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGNAME(0))) { - int len; - - if (!hid->name) { - r = 0; - break; - } - - len = strlen(hid->name) + 1; + int len = strlen(hid->name) + 1; if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd); r = copy_to_user(user_arg, hid->name, len) ? @@ -817,14 +810,7 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } if (_IOC_NR(cmd) == _IOC_NR(HIDIOCGPHYS(0))) { - int len; - - if (!hid->phys) { - r = 0; - break; - } - - len = strlen(hid->phys) + 1; + int len = strlen(hid->phys) + 1; if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd); r = copy_to_user(user_arg, hid->phys, len) ? -- cgit v1.2.3