[v2,3/5] USB: gadget: f_midi: setup SuperSpeed Plus descriptors
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Message ID 20201127140559.381351-4-gregkh@linuxfoundation.org
State New, archived
Headers show
Series
  • USB: Gadget SuperSpeed fixes and a cleanup
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Commit Message

Greg KH Nov. 27, 2020, 2:05 p.m. UTC
From: Will McVicker <willmcvicker@google.com>

Needed for SuperSpeed Plus support for f_midi.  This allows the
gadget to work properly without crashing at SuperSpeed rates.

Cc: Felipe Balbi <balbi@kernel.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Will McVicker <willmcvicker@google.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/function/f_midi.c | 6 ++++++
 1 file changed, 6 insertions(+)

Patch
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diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index 85cb15734aa8..974a2d931c3b 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -1048,6 +1048,12 @@  static int f_midi_bind(struct usb_configuration *c, struct usb_function *f)
 		f->ss_descriptors = usb_copy_descriptors(midi_function);
 		if (!f->ss_descriptors)
 			goto fail_f_midi;
+
+		if (gadget_is_superspeed_plus(c->cdev->gadget)) {
+			f->ssp_descriptors = usb_copy_descriptors(midi_function);
+			if (!f->ssp_descriptors)
+				goto fail_f_midi;
+		}
 	}
 
 	kfree(midi_function);