[PATCH 1/5] driver: print error message when probe fails

[Sascha Hauer]

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 drivers/base/driver.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 6c8fd05..7bb3ab4 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -77,6 +77,8 @@ int get_free_deviceid(const char *name_template)
 
 static int match(struct driver_d *drv, struct device_d *dev)
 {
+	int ret;
+
 	if (dev->driver)
 		return -1;
 
@@ -84,8 +86,11 @@ static int match(struct driver_d *drv, struct device_d *dev)
 
 	if (dev->bus->match(dev, drv))
 		goto err_out;
-	if (dev->bus->probe(dev))
+	ret = dev->bus->probe(dev);
+	if (ret) {
+		dev_err(dev, "probe failed: %s\n", strerror(-ret));
 		goto err_out;
+	}
 
 	list_add(&dev->active, &active);
 
-- 
1.7.10.4