X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Finput%2Fevdev.c;h=1148140d08a1faf72967dc3068e41c71488054d8;hb=012a5299a29672039f42944a37984558393ef769;hp=7a7a026ba71211b205cefd2f4590c1e7c5da20e2;hpb=8ecee4620e76aae418bfa0e8cc830e92cb559bbb;p=mv-sheeva.git

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 7a7a026ba71..1148140d08a 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;
@@ -626,8 +625,11 @@ 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 +656,9 @@ 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 +673,8 @@ 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 +812,15 @@ 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;