Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

Pull HID updates from Jiri Kosina:
 "No biggies this time:

   - micro-optimization of implement() in HID core parses, from Dmitry
     Torokhov

   - thingm driver cleanups from Heiner Kallweit

   - fine-graining detection of distance and tilt axes in wacom driver
     from Jason Gerecke

   - New hid-asus driver, currently supporting X205TA and VivoBook
     E200HA, from Yusuke Fujimaki"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: wacom: Add fuzz factor to distance and tilt axes
  HID: usbhid: quirks for Corsair RGB keyboard & mice (K70R, K95RGB, M65RGB, K70RGB, K65RGB)
  HID: thingm: remove not needed error message
  HID: thingm: set new flag LED_HW_PLUGGABLE
  HID: thingm: factor out duplicated code to thingm_init_led
  HID: simplify implement() a bit
  HID: asus: add support for VivoBook E200HA
  HID: hidraw: silence an uninitialized variable warning
  HID: roccat: silence an uninitialized variable warning
  HID: Asus X205TA keyboard driver
  HID: hidraw: switch to using memdup_user

1 files changed, 6 insertions, 12 deletions

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 9c2d7c23f296..f0e2757cb909 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -34,6 +34,7 @@
 #include <linux/hid.h>
 #include <linux/mutex.h>
 #include <linux/sched.h>
+#include <linux/string.h>
 
 #include <linux/hidraw.h>
 
@@ -123,7 +124,6 @@ static ssize_t hidraw_send_report(struct file *file, const char __user *buffer,
 
 	dev = hidraw_table[minor]->hid;
 
-
 	if (count > HID_MAX_BUFFER_SIZE) {
 		hid_warn(dev, "pid %d passed too large report\n",
 			 task_pid_nr(current));
@@ -138,17 +138,12 @@ static ssize_t hidraw_send_report(struct file *file, const char __user *buffer,
 		goto out;
 	}
 
-	buf = kmalloc(count * sizeof(__u8), GFP_KERNEL);
-	if (!buf) {
-		ret = -ENOMEM;
+	buf = memdup_user(buffer, count);
+	if (IS_ERR(buf)) {
+		ret = PTR_ERR(buf);
 		goto out;
 	}
 
-	if (copy_from_user(buf, buffer, count)) {
-		ret = -EFAULT;
-		goto out_free;
-	}
-
 	if ((report_type == HID_OUTPUT_REPORT) &&
 	    !(dev->quirks & HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP)) {
 		ret = hid_hw_output_report(dev, buf, count);
@@ -587,14 +582,13 @@ int __init hidraw_init(void)
 
 	result = alloc_chrdev_region(&dev_id, HIDRAW_FIRST_MINOR,
 			HIDRAW_MAX_DEVICES, "hidraw");
-
-	hidraw_major = MAJOR(dev_id);
-
 	if (result < 0) {
 		pr_warn("can't get major number\n");
 		goto out;
 	}
 
+	hidraw_major = MAJOR(dev_id);
+
 	hidraw_class = class_create(THIS_MODULE, "hidraw");
 	if (IS_ERR(hidraw_class)) {
 		result = PTR_ERR(hidraw_class);