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| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2019-10-01 19:10:33 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-17 13:41:01 -0700 |
| commit | d6952c7b39b2609dff01b55d6ccda96d4ac5dd78 (patch) | |
| tree | 4b188465b9a997d88e5029ff7d60c225fe4614df /kernel/trace/trace_functions_graph.c | |
| parent | 6207b7b8f096c9c94e52181338cf45496da69756 (diff) | |
usb: renesas_usbhs: gadget: Fix usb_ep_set_{halt,wedge}() behavior
commit 4d599cd3a097a85a5c68a2c82b9a48cddf9953ec upstream.
According to usb_ep_set_halt()'s description,
__usbhsg_ep_set_halt_wedge() should return -EAGAIN if the IN endpoint
has any queue or data. Otherwise, this driver is possible to cause
just STALL without sending a short packet data on g_mass_storage driver,
and then a few resetting a device happens on a host side during
a usb enumaration.
Fixes: 2f98382dcdfe ("usb: renesas_usbhs: Add Renesas USBHS Gadget")
Cc: <stable@vger.kernel.org> # v3.0+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1569924633-322-3-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
0 files changed, 0 insertions, 0 deletions