input: Properly recompute initial values upon recalibration in joydev.

drivers/input/joydev.c

@@ -290,7 +290,7 @@ static int joydev_ioctl(struct inode *inode, struct file *file, unsigned int cmd
 	struct joydev_list *list = file->private_data;
 	struct joydev *joydev = list->joydev;
 	struct input_dev *dev = joydev->handle.dev;
-	int i;
+	int i, j;
 
 	if (!joydev->exist) return -ENODEV;
 
@@ -324,8 +324,14 @@ static int joydev_ioctl(struct inode *inode, struct file *file, unsigned int cmd
 		case JSIOCGBUTTONS:
 			return put_user(joydev->nkey, (__u8 *) arg);
 		case JSIOCSCORR:
-			return copy_from_user(joydev->corr, (struct js_corr *) arg,
-						sizeof(struct js_corr) * joydev->nabs) ? -EFAULT : 0;
+			if (copy_from_user(joydev->corr, (struct js_corr *)arg,
+				      sizeof(struct js_corr) * joydev->nabs))
+			    return -EFAULT;
+			for (i = 0; i < joydev->nabs; i++) {
+				j = joydev->abspam[i];
+			        joydev->abs[i] = joydev_correct(dev->abs[j], joydev->corr + i);
+			}
+			return 0;
 		case JSIOCGCORR:
 			return copy_to_user((struct js_corr *) arg, joydev->corr,
 						sizeof(struct js_corr) * joydev->nabs) ? -EFAULT : 0;
@@ -426,6 +432,7 @@ static struct input_handle *joydev_connect(struct input_handler *handler, struct
 		j = joydev->abspam[i];
 		if (dev->absmax[j] == dev->absmin[j]) {
 			joydev->corr[i].type = JS_CORR_NONE;
+			joydev->abs[i] = dev->abs[j];
 			continue;
 		}
 		joydev->corr[i].type = JS_CORR_BROKEN;