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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 09:10:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 09:10:03 -0700
commitee9ec4f82049c678373a611ce20ac67fe9ad836e (patch)
treee5ec44a30720f1db1cd4a803b3711a2293322dc5 /drivers/hid/hidraw.c
parente0c6b8a17fb3d4a740386b380ea72aa8388fbf2f (diff)
parent366a2382c68d01638350efcf23d46a47d661c595 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (36 commits) HID: hid-multitouch: cosmetic changes, sort classes and devices HID: hid-multitouch: class MT_CLS_STANTUM is redundant with MT_CLS_CONFIDENCE HID: hid-multitouch: add support for Unitec panels HID: hid-multitouch: add support for Touch International panels HID: hid-multitouch: add support for GoodTouch panels HID: hid-multitouch: add support for CVTouch panels HID: hid-multitouch: add support for ActionStar panels HID: hiddev: fix race between hiddev_disconnect and hiddev_release HID: magicmouse: ignore 'ivalid report id' while switching modes HID: fix a crash in hid_report_raw_event() function. HID: hid-multitouch: add support for Elo TouchSystems 2515 IntelliTouch Plus HID: assorted usage updates from hut 1.12 HID: roccat: fix actual/startup profile sysfs attribute in koneplus HID: hid-multitouch: Add support for Lumio panels HID: 'name' and 'phys' in 'struct hid_device' can never be NULL HID: hid-multitouch: add support for Ilitek dual-touch panel HID: picolcd: Avoid compile warning/error triggered by copy_from_user() HID: add support for Logitech G27 wheel HID: hiddev: fix error path in hiddev_read when interrupted HID: add support for Sony Navigation Controller ...
Diffstat (limited to 'drivers/hid/hidraw.c')
-rw-r--r--drivers/hid/hidraw.c30
1 files changed, 10 insertions, 20 deletions
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 54409cba018c..c79578b5a788 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;
@@ -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) ?