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| author | Myeonghun Pak <mhun512@gmail.com> | 2026-09-14 21:20:11 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-09-16 19:19:17 +0100 |
| commit | 08b2ccd7eb7e41f77a04a09112ca3edcc588e3f0 (patch) | |
| tree | 3635aa2e9a533e17db911407c10a92e819f12343 | |
| parent | b1b0f8bdbbc891a4ee7f3b1a878c633e02b7bbeb (diff) | |
| download | linux-next-08b2ccd7eb7e41f77a04a09112ca3edcc588e3f0.tar.gz linux-next-08b2ccd7eb7e41f77a04a09112ca3edcc588e3f0.zip | |
usb: ohci-st: disable controller wakeup on removal
Probe enables controller wakeup after the OHCI core marks controllers with
RemoteWakeupConnected as wakeup-capable. Removal does not undo this, so the
wakeup source can remain attached after driver unbind.
Disable controller wakeup after removing the HCD.
This issue was identified during our ongoing static-analysis research
while reviewing kernel code.
Fixes: d115837259ad ("usb: host: ohci-st: Add OHCI driver support for ST STB devices")
Cc: stable <stable@kernel.org>
Assisted-by: LLM
Co-developed-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://patch.msgid.link/20260915012011.61874-5-mhun512@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/host/ohci-st.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-st.c b/drivers/usb/host/ohci-st.c index d1656fce5400..53010a277b67 100644 --- a/drivers/usb/host/ohci-st.c +++ b/drivers/usb/host/ohci-st.c @@ -235,6 +235,7 @@ static void st_ohci_platform_remove(struct platform_device *dev) int clk; usb_remove_hcd(hcd); + device_wakeup_disable(hcd->self.controller); if (pdata->power_off) pdata->power_off(dev); |