mutex_lock(&spidev->buf_lock);
status = spidev_sync_read(spidev, count);
mutex_lock(&spidev->buf_lock);
status = spidev_sync_read(spidev, count);
- missing = copy_to_user(buf, spidev->buffer, count);
- if (count && missing == count)
+ missing = copy_to_user(buf, spidev->buffer, status);
+ if (missing == status)
missing = copy_from_user(spidev->buffer, buf, count);
if (missing == 0) {
status = spidev_sync_write(spidev, count);
missing = copy_from_user(spidev->buffer, buf, count);
if (missing == 0) {
status = spidev_sync_write(spidev, count);
mutex_lock(&device_list_lock);
list_for_each_entry(spidev, &device_list, device_entry) {
mutex_lock(&device_list_lock);
list_for_each_entry(spidev, &device_list, device_entry) {
pr_debug("spidev: nothing for minor %d\n", iminor(inode));
mutex_unlock(&device_list_lock);
pr_debug("spidev: nothing for minor %d\n", iminor(inode));
mutex_unlock(&device_list_lock);
- dev = device_create(spidev_class, &spi->dev, spidev->devt,
+ dev = device_create_drvdata(spidev_class, &spi->dev,
+ spidev->devt, spidev,
"spidev%d.%d",
spi->master->bus_num, spi->chip_select);
status = IS_ERR(dev) ? PTR_ERR(dev) : 0;
"spidev%d.%d",
spi->master->bus_num, spi->chip_select);
status = IS_ERR(dev) ? PTR_ERR(dev) : 0;
list_add(&spidev->device_entry, &device_list);
}
mutex_unlock(&device_list_lock);
list_add(&spidev->device_entry, &device_list);
}
mutex_unlock(&device_list_lock);