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-rw-r--r--drivers/base/dd.c1
-rw-r--r--drivers/scsi/scsi_scan.c2
-rw-r--r--drivers/scsi/scsi_wait_scan.c11
-rw-r--r--include/linux/device.h1
4 files changed, 13 insertions, 2 deletions
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index f17c3266a0e..742cbe6b042 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -179,6 +179,7 @@ void wait_for_device_probe(void)
wait_event(probe_waitqueue, atomic_read(&probe_count) == 0);
async_synchronize_full();
}
+EXPORT_SYMBOL_GPL(wait_for_device_probe);
/**
* driver_probe_device - attempt to bind device & driver together
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index a14d245a66b..6f51ca485f3 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -180,8 +180,6 @@ int scsi_complete_async_scans(void)
spin_unlock(&async_scan_lock);
kfree(data);
- /* Synchronize async operations globally */
- async_synchronize_full();
return 0;
}
diff --git a/drivers/scsi/scsi_wait_scan.c b/drivers/scsi/scsi_wait_scan.c
index 2f21af21269..74708fcaf82 100644
--- a/drivers/scsi/scsi_wait_scan.c
+++ b/drivers/scsi/scsi_wait_scan.c
@@ -11,10 +11,21 @@
*/
#include <linux/module.h>
+#include <linux/device.h>
#include <scsi/scsi_scan.h>
static int __init wait_scan_init(void)
{
+ /*
+ * First we need to wait for device probing to finish;
+ * the drivers we just loaded might just still be probing
+ * and might not yet have reached the scsi async scanning
+ */
+ wait_for_device_probe();
+ /*
+ * and then we wait for the actual asynchronous scsi scan
+ * to finish.
+ */
scsi_complete_async_scans();
return 0;
}
diff --git a/include/linux/device.h b/include/linux/device.h
index 2918c0e8fdf..6a69caaac18 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -551,6 +551,7 @@ extern int (*platform_notify_remove)(struct device *dev);
extern struct device *get_device(struct device *dev);
extern void put_device(struct device *dev);
+extern void wait_for_device_probe(void);
/* drivers/base/power/shutdown.c */
extern void device_shutdown(void);