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path: root/drivers/usb/gadget/udc/dummy_hcd.c
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Diffstat (limited to 'drivers/usb/gadget/udc/dummy_hcd.c')
-rw-r--r--drivers/usb/gadget/udc/dummy_hcd.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 53a227217f1c..ab5e978b5052 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -553,6 +553,7 @@ static int dummy_enable(struct usb_ep *_ep,
/* we'll fake any legal size */
break;
/* save a return statement */
+ fallthrough;
default:
goto done;
}
@@ -595,6 +596,7 @@ static int dummy_enable(struct usb_ep *_ep,
if (max <= 1023)
break;
/* save a return statement */
+ fallthrough;
default:
goto done;
}
@@ -1754,8 +1756,10 @@ static int handle_control_request(struct dummy_hcd *dum_hcd, struct urb *urb,
return ret_val;
}
-/* drive both sides of the transfers; looks like irq handlers to
- * both drivers except the callbacks aren't in_irq().
+/*
+ * Drive both sides of the transfers; looks like irq handlers to both
+ * drivers except that the callbacks are invoked from soft interrupt
+ * context.
*/
static void dummy_timer(struct timer_list *t)
{
@@ -2734,7 +2738,7 @@ static int __init init(void)
{
int retval = -ENOMEM;
int i;
- struct dummy *dum[MAX_NUM_UDC];
+ struct dummy *dum[MAX_NUM_UDC] = {};
if (usb_disabled())
return -ENODEV;