mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-24 15:56:49 +00:00
8c405cdccc
The patches were generated from the RPi repo with the following command: git format-patch v6.6.34..rpi-6.1.y Some patches needed rebasing and, as usual, the applied and reverted, wireless drivers, Github workflows, READMEs and defconfigs patches were removed. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
60 lines
2.0 KiB
Diff
60 lines
2.0 KiB
Diff
From 8aa73e8d1f765dc6b104047832ab25aca70e22f0 Mon Sep 17 00:00:00 2001
|
|
From: Jonathan Bell <jonathan@raspberrypi.com>
|
|
Date: Tue, 25 Oct 2022 10:50:10 +0100
|
|
Subject: [PATCH 0392/1085] drivers: usb: dwc_otg: fix reference passing when
|
|
checking bandwidth
|
|
|
|
The pointer (struct usb_host_endpoint *)->hcpriv should contain a
|
|
reference to dwc_otg_qh_t if the driver has already seen a URB submitted
|
|
to this endpoint.
|
|
|
|
It then checks whether the qh exists and is already in a schedule in
|
|
order to decide whether to allocate periodic bandwidth or not. Passing a
|
|
pointer to an offset inside of struct usb_host_endpoint instead of just
|
|
the pointer means it dereferences bogus addresses.
|
|
|
|
Rationalise (delete) a variable while we're at it.
|
|
|
|
See https://github.com/raspberrypi/linux/issues/5189
|
|
|
|
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
|
|
---
|
|
drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c | 8 +++-----
|
|
1 file changed, 3 insertions(+), 5 deletions(-)
|
|
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
|
|
@@ -807,7 +807,6 @@ static int dwc_otg_urb_enqueue(struct us
|
|
struct usb_host_endpoint *ep = urb->ep;
|
|
#endif
|
|
dwc_irqflags_t irqflags;
|
|
- void **ref_ep_hcpriv = &ep->hcpriv;
|
|
dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
|
|
dwc_otg_hcd_urb_t *dwc_otg_urb;
|
|
int i;
|
|
@@ -824,7 +823,7 @@ static int dwc_otg_urb_enqueue(struct us
|
|
if ((usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
|
|
|| (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)) {
|
|
if (!dwc_otg_hcd_is_bandwidth_allocated
|
|
- (dwc_otg_hcd, ref_ep_hcpriv)) {
|
|
+ (dwc_otg_hcd, ep->hcpriv)) {
|
|
alloc_bandwidth = 1;
|
|
}
|
|
}
|
|
@@ -910,13 +909,12 @@ static int dwc_otg_urb_enqueue(struct us
|
|
#endif
|
|
{
|
|
retval = dwc_otg_hcd_urb_enqueue(dwc_otg_hcd, dwc_otg_urb,
|
|
- /*(dwc_otg_qh_t **)*/
|
|
- ref_ep_hcpriv, 1);
|
|
+ &ep->hcpriv, 1);
|
|
if (0 == retval) {
|
|
if (alloc_bandwidth) {
|
|
allocate_bus_bandwidth(hcd,
|
|
dwc_otg_hcd_get_ep_bandwidth(
|
|
- dwc_otg_hcd, *ref_ep_hcpriv),
|
|
+ dwc_otg_hcd, ep->hcpriv),
|
|
urb);
|
|
}
|
|
} else {
|