5.4-stable review patch. If anyone has any objections, please let me know.
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From: Greg Kroah-Hartman gregkh@linuxfoundation.org
commit 086fd062bc3883ae1ce4166cff5355db315ad879 upstream.
This reverts commit 13014969cbf07f18d62ceea40bd8ca8ec9d36cec.
It is reported to cause crashes on Tegra systems, so revert it for now.
Link: https://lore.kernel.org/r/1037c1ad-9230-4181-b9c3-167dbaa47644@nvidia.com Reported-by: Jon Hunter jonathanh@nvidia.com Cc: stable stable@kernel.org Cc: Lianqin Hu hulianqin@vivo.com Link: https://lore.kernel.org/r/2025011711-yippee-fever-a737@gregkh Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/gadget/function/u_serial.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/usb/gadget/function/u_serial.c +++ b/drivers/usb/gadget/function/u_serial.c @@ -1369,10 +1369,6 @@ void gserial_disconnect(struct gserial * /* REVISIT as above: how best to track this? */ port->port_line_coding = gser->port_line_coding;
- /* disable endpoints, aborting down any active I/O */ - usb_ep_disable(gser->out); - usb_ep_disable(gser->in); - port->port_usb = NULL; gser->ioport = NULL; if (port->port.count > 0 || port->openclose) { @@ -1382,6 +1378,10 @@ void gserial_disconnect(struct gserial * } spin_unlock_irqrestore(&port->port_lock, flags);
+ /* disable endpoints, aborting down any active I/O */ + usb_ep_disable(gser->out); + usb_ep_disable(gser->in); + /* finally, free any unused/unusable I/O buffers */ spin_lock_irqsave(&port->port_lock, flags); if (port->port.count == 0 && !port->openclose)