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usb: gadget: f_sourcesink: Fix isoc transfer for USB_SPEED_SUPER_PLUS

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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>
This commit is contained in:
Pavankumar Kondeti 2022-01-22 08:33:22 +05:30 committed by Greg Kroah-Hartman
parent 42865e5544
commit 2798046325
1 changed files with 1 additions and 0 deletions
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drivers/usb/gadget/function/f_sourcesink.c
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@ -584,6 +584,7 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
if (is_iso) {
switch (speed) {
case USB_SPEED_SUPER_PLUS:
case USB_SPEED_SUPER:
size = ss->isoc_maxpacket *
(ss->isoc_mult + 1) *