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-rw-r--r--arch/um/drivers/ubd_kern.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index dcabb463e011..247f95da057b 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -113,6 +113,7 @@ static const struct block_device_operations ubd_blops = {
.open = ubd_open,
.release = ubd_release,
.ioctl = ubd_ioctl,
+ .compat_ioctl = blkdev_compat_ptr_ioctl,
.getgeo = ubd_getgeo,
};