If a SCSI ULD driver sets blk_queue_prep_rq(), it should clean it
up itself on remove(), and not from the bus callbacks. This
removes the need to hook into bus->remove(), which should not
be used at the same time as driver->remove().
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
Signed-off-by: Kay Sievers <kay.sievers@xxxxxxxx>
---
drivers/scsi/scsi_lib.c | 1 +
drivers/scsi/scsi_priv.h | 1 -
drivers/scsi/scsi_sysfs.c | 17 -----------------
drivers/scsi/sd.c | 1 +
drivers/scsi/sr.c | 1 +
include/scsi/scsi_driver.h | 1 +
6 files changed, 4 insertions(+), 18 deletions(-)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 30f3275..f3c4089 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1207,6 +1207,7 @@ int scsi_prep_fn(struct request_queue *q, struct request *req)
ret = scsi_setup_blk_pc_cmnd(sdev, req);
return scsi_prep_return(q, req, ret);
}
+EXPORT_SYMBOL(scsi_prep_fn);
/*
* scsi_dev_queue_ready: if we can send requests to sdev, return 1 else
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index fbc83be..1ade801 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -71,7 +71,6 @@ extern int scsi_init_queue(void);
extern void scsi_exit_queue(void);
struct request_queue;
struct request;
-extern int scsi_prep_fn(struct request_queue *, struct request *);
extern struct kmem_cache *scsi_sdb_cache;
/* scsi_proc.c */
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index fa4711d..91482f2 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -420,29 +420,12 @@ static int scsi_bus_resume(struct device * dev)
return err;
}
-static int scsi_bus_remove(struct device *dev)
-{
- struct device_driver *drv = dev->driver;
- struct scsi_device *sdev = to_scsi_device(dev);
- int err = 0;
-
- /* reset the prep_fn back to the default since the
- * driver may have altered it and it's being removed */
- blk_queue_prep_rq(sdev->request_queue, scsi_prep_fn);
-
- if (drv && drv->remove)
- err = drv->remove(dev);
-
- return 0;
-}
-
struct bus_type scsi_bus_type = {
.name = "scsi",
.match = scsi_bus_match,
.uevent = scsi_bus_uevent,
.suspend = scsi_bus_suspend,
.resume = scsi_bus_resume,
- .remove = scsi_bus_remove,
};
EXPORT_SYMBOL_GPL(scsi_bus_type);
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 878b17a..93c4bed 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2053,6 +2053,7 @@ static int sd_remove(struct device *dev)
struct scsi_disk *sdkp;
async_synchronize_full();
+ blk_queue_prep_rq(sdkp->device->request_queue, scsi_prep_fn);
sdkp = dev_get_drvdata(dev);
device_del(&sdkp->dev);
del_gendisk(sdkp->disk);
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index cd350df..cce0fe4 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -881,6 +881,7 @@ static int sr_remove(struct device *dev)
{
struct scsi_cd *cd = dev_get_drvdata(dev);
+ blk_queue_prep_rq(cd->device->request_queue, scsi_prep_fn);
del_gendisk(cd->disk);
mutex_lock(&sr_ref_mutex);
diff --git a/include/scsi/scsi_driver.h b/include/scsi/scsi_driver.h
index 1f5ca7f..9fd6702 100644
--- a/include/scsi/scsi_driver.h
+++ b/include/scsi/scsi_driver.h
@@ -32,5 +32,6 @@ int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req);
int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req);
int scsi_prep_state_check(struct scsi_device *sdev, struct request *req);
int scsi_prep_return(struct request_queue *q, struct request *req, int ret);
+int scsi_prep_fn(struct request_queue *, struct request *);
#endif /* _SCSI_SCSI_DRIVER_H */
--
1.5.3.2
--
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