linux-kernel - [PATCH] scsi: sr: Fix some cdroms automatically ejected when booting into the system

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Date:   Wed, 27 Apr 2022 17:09:06 +0800
From:   jinxiaobo <jinxiaobo@...ontech.com>
To:     jejb@...ux.ibm.com, martin.petersen@...cle.com
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        jinxiaobo <jinxiaobo@...ontech.com>
Subject: [PATCH] scsi: sr: Fix some cdroms automatically ejected when booting into the system

sr_get_events() has been called before udev starts when SCSI CDROM is
built-in and AHCI SATA is bulit-in,so sr events propagated to 
user space are not handled.
if both is loadable, udev will handle sr events, some cdroms may eject.
We need call sr_get_events() once before device_add_disk() 
to keep the same result, whether both are built-in or loadable.

Signed-off-by: jinxiaobo <jinxiaobo@...ontech.com>
---
 drivers/scsi/sr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index cbd92891a762..043b3ab72d7a 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -676,6 +676,7 @@ static int sr_probe(struct device *dev)
 	set_capacity(disk, cd->capacity);
 	disk->private_data = cd;

+	sr_get_events(sdev);
 	if (register_cdrom(disk, &cd->cdi))
 		goto fail_minor;

-- 
2.20.1