| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 056/171] usb: gadget: f_sourcesink: Fix isoc transfer for USB_SPEED_SUPER_PLUS | Date | Mon, 31 Jan 2022 11:55:21 +0100 |
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From: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
commit 904edf8aeb459697129be5fde847e2a502f41fd9 upstream.
Currently when gadget enumerates in super speed plus, the isoc endpoint request buffer size is not calculated correctly. Fix this by checking the gadget speed against USB_SPEED_SUPER_PLUS and update the request buffer size.
Fixes: 90c4d05780d4 ("usb: fix various gadgets null ptr deref on 10gbps cabling.") Cc: stable <stable@vger.kernel.org> Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com> Link: https://lore.kernel.org/r/1642820602-20619-1-git-send-email-quic_pkondeti@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/usb/gadget/function/f_sourcesink.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/usb/gadget/function/f_sourcesink.c +++ b/drivers/usb/gadget/function/f_sourcesink.c @@ -584,6 +584,7 @@ static int source_sink_start_ep(struct f if (is_iso) { switch (speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: size = ss->isoc_maxpacket * (ss->isoc_mult + 1) *
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