1 files changed, 4 insertions, 9 deletions

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 9c2d7c23f296..b9a76e3a7f17 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);