Merge tag 'block-5.12-2021-04-23' of git://git.kernel.dk/linux-block
Pull block fix from Jens Axboe:
"A single fix for a behavioral regression in this series, when
re-reading the partition table with partitions open"
* tag 'block-5.12-2021-04-23' of git://git.kernel.dk/linux-block:
block: return -EBUSY when there are open partitions in blkdev_reread_part
diff --git a/block/ioctl.c b/block/ioctl.c
index ff241e6..8ba1ed8 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -89,6 +89,8 @@
return -EINVAL;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
+ if (bdev->bd_part_count)
+ return -EBUSY;
/*
* Reopen the device to revalidate the driver state and force a
