[PATCH v3 3/3] driver-core: print bus registration error value

[Florian Schmaus]

Signed-off-by: Florian Schmaus <flo@xxxxxxxxxxxx>
---
 drivers/base/driver.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index afd5b08b7677..c68d35139c0f 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -149,8 +149,9 @@ int driver_register(struct device_driver *drv)
 	struct device_driver *other;
 
 	if (!drv->bus->p) {
-		printk(KERN_ERR "Driver '%s' was unable to register bus_type\n",
-			   drv->name);
+		printk(KERN_ERR "Driver '%s' was unable to register bus_type "
+			   "(error: %d)\n",
+			   drv->name, drv->bus->bus_register_retval);
 		return -EINVAL;
 	}
 
-- 
2.16.1