[PATCH] USB: Optimize goto logic in API usb_register_driver()

[Zijun Hu]

From: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>

usb_register_driver() uses complex goto statements to handle simple error
cases, move down the goto label 'out' a bit to

- Simplify goto logic
- Leverage pr_err() prompt for driver registering failure.

Signed-off-by: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
---
 drivers/usb/core/driver.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index f203fdbfb6f68e6cf52feb077f042045cb9bf3a8..460d4dde5994e783bdcad08b2abb6bb85ab3258f 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1086,15 +1086,14 @@ int usb_register_driver(struct usb_driver *new_driver, struct module *owner,
 	pr_info("%s: registered new interface driver %s\n",
 			usbcore_name, new_driver->name);
 
-out:
-	return retval;
+	return 0;
 
 out_newid:
 	driver_unregister(&new_driver->driver);
-
+out:
 	pr_err("%s: error %d registering interface driver %s\n",
 		usbcore_name, retval, new_driver->name);
-	goto out;
+	return retval;
 }
 EXPORT_SYMBOL_GPL(usb_register_driver);
 

---
base-commit: d8d936c51388442f769a81e512b505dcf87c6a51
change-id: 20241129-fix_usb-5b37e1d2730d

Best regards,
-- 
Zijun Hu <quic_zijuhu@xxxxxxxxxxx>