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authorIngo Molnar <mingo@kernel.org>2014-02-02 09:45:39 +0100
committerIngo Molnar <mingo@kernel.org>2014-02-02 09:45:39 +0100
commiteaa4e4fcf1b5c60e656d93242f7fe422173f25b2 (patch)
treec05d5d6ca3f625d72a9d136b4c485d3dc9472089 /drivers/hid/hidraw.c
parentbe1e4e760d940c14d119bffef5eb007dfdf29046 (diff)
parent5cb480f6b488128140c940abff3c36f524a334a8 (diff)
Merge branch 'linus' into sched/core, to resolve conflicts
Conflicts: kernel/sysctl.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/hid/hidraw.c')
-rw-r--r--drivers/hid/hidraw.c27
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 6a6dd5cd78334..cb0137b3718d8 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -6,7 +6,7 @@
* to work on raw hid events as they want to, and avoids a need to
* use a transport-specific userspace libhid/libusb libraries.
*
- * Copyright (c) 2007 Jiri Kosina
+ * Copyright (c) 2007-2014 Jiri Kosina
*/
/*
@@ -104,8 +104,11 @@ 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 of the report buffer 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_inode(file));
@@ -157,7 +160,6 @@ out:
return ret;
}
-/* the first byte is expected to be a report number */
static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
ssize_t ret;
@@ -168,12 +170,15 @@ 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
+/*
+ * 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. */
+ * 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_inode(file));
@@ -209,8 +214,10 @@ static ssize_t hidraw_get_report(struct file *file, char __user *buffer, size_t
goto out;
}
- /* Read the first byte from the user. This is the report number,
- * which is passed to dev->hid_get_raw_report(). */
+ /*
+ * Read the first byte from the user. This is the report number,
+ * which is passed to dev->hid_get_raw_report().
+ */
if (copy_from_user(&report_number, buffer, 1)) {
ret = -EFAULT;
goto out_free;
@@ -498,7 +505,7 @@ int hidraw_connect(struct hid_device *hid)
int minor, result;
struct hidraw *dev;
- /* we accept any HID device, no matter the applications */
+ /* we accept any HID device, all applications */
dev = kzalloc(sizeof(struct hidraw), GFP_KERNEL);
if (!dev)