diff mbox series

[v3,05/10] usb: gadget: aspeed: Check suspend/resume callback existence

Message ID 20190726050539.7875-6-benh@kernel.crashing.org (mailing list archive)
State Mainlined
Commit 155940a16d688b5376f7c955a5f53259c6fe5689
Headers show
Series usb: gadget: aspeed: Bug fixes | expand

Commit Message

Benjamin Herrenschmidt July 26, 2019, 5:05 a.m. UTC 
.. before calling them

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 drivers/usb/gadget/udc/aspeed-vhub/dev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/gadget/udc/aspeed-vhub/dev.c b/drivers/usb/gadget/udc/aspeed-vhub/dev.c
index 71e2416858fd..5f7e3b6de531 100644
--- a/drivers/usb/gadget/udc/aspeed-vhub/dev.c
+++ b/drivers/usb/gadget/udc/aspeed-vhub/dev.c
@@ -458,7 +458,7 @@  static const struct usb_gadget_ops ast_vhub_udc_ops = {
 void ast_vhub_dev_suspend(struct ast_vhub_dev *d)
 {
 	d->suspended = true;
-	if (d->driver) {
+	if (d->driver && d->driver->suspend) {
 		spin_unlock(&d->vhub->lock);
 		d->driver->suspend(&d->gadget);
 		spin_lock(&d->vhub->lock);
@@ -468,7 +468,7 @@  void ast_vhub_dev_suspend(struct ast_vhub_dev *d)
 void ast_vhub_dev_resume(struct ast_vhub_dev *d)
 {
 	d->suspended = false;
-	if (d->driver) {
+	if (d->driver && d->driver->resume) {
 		spin_unlock(&d->vhub->lock);
 		d->driver->resume(&d->gadget);
 		spin_lock(&d->vhub->lock);