1 files changed, 13 insertions, 8 deletions

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 7a7a026ba712..114efd8dc8f5 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -25,7 +25,6 @@ struct evdev {
         int exist;
         int open;
         int minor;
-        char name[16];
         struct input_handle handle;
         wait_queue_head_t wait;
         struct evdev_client *grab;
@@ -609,7 +608,8 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
                                                     p, compat_mode);
 
                         if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0)))
-                                return str_to_user(dev->name, _IOC_SIZE(cmd), p);
+                                return str_to_user(dev_name(&evdev->dev),
+                                                   _IOC_SIZE(cmd), p);
 
                         if (_IOC_NR(cmd) == _IOC_NR(EVIOCGPHYS(0)))
                                 return str_to_user(dev->phys, _IOC_SIZE(cmd), p);
@@ -626,8 +626,11 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
                                 abs.maximum = dev->absmax[t];
                                 abs.fuzz = dev->absfuzz[t];
                                 abs.flat = dev->absflat[t];
+                                abs.resolution = dev->absres[t];
 
-                                if (copy_to_user(p, &abs, sizeof(struct input_absinfo)))
+                                if (copy_to_user(p, &abs, min_t(size_t,
+                                                                _IOC_SIZE(cmd),
+                                                                sizeof(struct input_absinfo))))
                                         return -EFAULT;
 
                                 return 0;
@@ -654,8 +657,9 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
 
                                 t = _IOC_NR(cmd) & ABS_MAX;
 
-                                if (copy_from_user(&abs, p,
-                                                sizeof(struct input_absinfo)))
+                                if (copy_from_user(&abs, p, min_t(size_t,
+                                                                  _IOC_SIZE(cmd),
+                                                                  sizeof(struct input_absinfo))))
                                         return -EFAULT;
 
                                 /*
@@ -670,6 +674,8 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
                                 dev->absmax[t] = abs.maximum;
                                 dev->absfuzz[t] = abs.fuzz;
                                 dev->absflat[t] = abs.flat;
+                                dev->absres[t] = _IOC_SIZE(cmd) < sizeof(struct input_absinfo) ?
+                                                        0 : abs.resolution;
 
                                 spin_unlock_irq(&dev->event_lock);
 
@@ -807,16 +813,15 @@ static int evdev_connect(struct input_handler *handler, struct input_dev *dev,
         mutex_init(&evdev->mutex);
         init_waitqueue_head(&evdev->wait);
 
-        snprintf(evdev->name, sizeof(evdev->name), "event%d", minor);
+        dev_set_name(&evdev->dev, "event%d", minor);
         evdev->exist = 1;
         evdev->minor = minor;
 
         evdev->handle.dev = input_get_device(dev);
-        evdev->handle.name = evdev->name;
+        evdev->handle.name = dev_name(&evdev->dev);
         evdev->handle.handler = handler;
         evdev->handle.private = evdev;
 
-        dev_set_name(&evdev->dev, evdev->name);
         evdev->dev.devt = MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + minor);
         evdev->dev.class = &input_class;
         evdev->dev.parent = &dev->dev;