From: Bart Van Assche bvanassche@acm.org
[ 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@oracle.com Reported-by: John Garry john.g.garry@oracle.com Link: https://lore.kernel.org/all/ed6b8027-a9d9-1b45-be8e-df4e8c6c4605@oracle.com/ Reported-by: syzbot+645a4616b87a2f10e398@syzkaller.appspotmail.com Link: https://lore.kernel.org/linux-scsi/000000000000890fab05f65342b6@google.com/ Signed-off-by: Bart Van Assche bvanassche@acm.org Link: https://lore.kernel.org/r/20230307214428.3703498-1-bvanassche@acm.org Tested-by: John Garry john.g.garry@oracle.com Tested-by: Shin'ichiro Kawasaki shinichiro.kawasaki@wdc.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/hosts.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 0fd2487203ff5..18321cf9db5d6 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -322,9 +322,6 @@ 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();