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Commit 660877cd authored by Hemant Kumar's avatar Hemant Kumar Committed by Gerrit - the friendly Code Review server
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sound: usb: Increase upper bound check for bInterval to 16 



Driver currently restrict upper bound check for bInterval
to 4 which corresponds to 1 ms. Fix the bInterval range
check as per the USB spec for ISOC endpoint.

Change-Id: I580e1fdfab0eeb1231642b920239691e7af67727
Signed-off-by: default avatarHemant Kumar <hemantk@codeaurora.org>
parent 5027ffca

sound/usb/helper.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -122,7 +122,7 @@ unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip, 
	case USB_SPEED_SUPER:

	case USB_SPEED_SUPER:

	case USB_SPEED_SUPER_PLUS:

	case USB_SPEED_SUPER_PLUS:

		if (get_endpoint(alts, 0)->bInterval >= 1 &&

		if (get_endpoint(alts, 0)->bInterval >= 1 &&

		    get_endpoint(alts, 0)->bInterval <= 4)

		    get_endpoint(alts, 0)->bInterval <= 16)

			return get_endpoint(alts, 0)->bInterval - 1;

			return get_endpoint(alts, 0)->bInterval - 1;

		break;

		break;

	default:

	default: