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authorMing Lei <ming.lei@redhat.com>2023-07-26 22:45:02 +0800
committerJens Axboe <axboe@kernel.dk>2023-07-27 07:17:36 -0600
commit3e9dce80dbf91972aed972c743f539c396a34312 (patch)
treea2f03af3a060d04df4e6bb091f3becd82bb68030 /drivers/block
parent0c0cbd4ebc375ceebc75c89df04b74f215fab23a (diff)
ublk: return -EINTR if breaking from waiting for existed users in DEL_DEV
If user interrupts wait_event_interruptible() in ublk_ctrl_del_dev(), return -EINTR and let user know what happens. Fixes: 0abe39dec065 ("block: ublk: improve handling device deletion") Reported-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/r/20230726144502.566785-4-ming.lei@redhat.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/ublk_drv.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index 9fcba3834e8d..21d2e71c5514 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -2126,8 +2126,8 @@ static int ublk_ctrl_del_dev(struct ublk_device **p_ub)
* - the device number is freed already, we will not find this
* device via ublk_get_device_from_id()
*/
- wait_event_interruptible(ublk_idr_wq, ublk_idr_freed(idx));
-
+ if (wait_event_interruptible(ublk_idr_wq, ublk_idr_freed(idx)))
+ return -EINTR;
return 0;
}