From: Bart Van Assche <bvanassche@xxxxxxx>
[ Upstream commit be03df3d4bfe7e8866d4aa43d62e648ffe884f5f ]
scsi_proc_hostdir_rm() decreases a reference counter and hence must only be
called once per host that is removed. This change does not require a
scsi_add_host_with_dma() change since scsi_add_host_with_dma() will return
0 (success) if scsi_proc_host_add() is called.
Fixes: fc663711b944 ("scsi: core: Remove the /proc/scsi/${proc_name} directory earlier")
Cc: John Garry <john.g.garry@xxxxxxxxxx>
Reported-by: John Garry <john.g.garry@xxxxxxxxxx>
Link: https://lore.kernel.org/all/ed6b8027-a9d9-1b45-be8e-df4e8c6c4605@xxxxxxxxxx/
Reported-by: syzbot+645a4616b87a2f10e398@xxxxxxxxxxxxxxxxxxxxxxxxx
Link: https://lore.kernel.org/linux-scsi/000000000000890fab05f65342b6@xxxxxxxxxx/
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
Link: https://lore.kernel.org/r/20230307214428.3703498-1-bvanassche@xxxxxxx
Tested-by: John Garry <john.g.garry@xxxxxxxxxx>
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@xxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/scsi/hosts.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 85e66574ec414..45a2fd6584d16 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -341,9 +341,6 @@ static void scsi_host_dev_release(struct device *dev)
struct Scsi_Host *shost = dev_to_shost(dev);
struct device *parent = dev->parent;
- /* In case scsi_remove_host() has not been called. */
- scsi_proc_hostdir_rm(shost->hostt);
-
/* Wait for functions invoked through call_rcu(&scmd->rcu, ...) */
rcu_barrier();
--
2.39.2
