]> git.baikalelectronics.ru Git - kernel.git/commit
usb: renesas_usbhs: Fix superfluous irqs happen after usb_pkt_pop()
authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Thu, 24 Jun 2021 12:20:39 +0000 (21:20 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 21 Jul 2021 07:50:00 +0000 (09:50 +0200)
commit3b5be2cb29bff67de94da3386aac2ae1dce01367
tree8c2b4f8c63f306224b3edcfacafed30c2beb10e6
parent108cc982211297554ba133479ca5f466f537f3eb
usb: renesas_usbhs: Fix superfluous irqs happen after usb_pkt_pop()

This driver has a potential issue which this driver is possible to
cause superfluous irqs after usb_pkt_pop() is called. So, after
the commit 179b083f2d29 ("usb: renesas_usbhs: fix error return
code of usbhsf_pkt_handler()") had been applied, we could observe
the following error happened when we used g_audio.

    renesas_usbhs e6590000.usb: irq_ready run_error 1 : -22

To fix the issue, disable the tx or rx interrupt in usb_pkt_pop().

Fixes: 7809fc6a7215 ("usb: renesas_usbhs: fix the usb_pkt_pop()")
Cc: <stable@vger.kernel.org> # v4.4+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20210624122039.596528-1-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/renesas_usbhs/fifo.c