usb: gadget: udc: renesas_usb3: lock for PN_ registers access

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commit 940f538a10 upstream.

This controller disallows to change the PIPE until reading/writing
a packet finishes. However. the previous code is not enough to hold
the lock in some functions. So, this patch fixes it.

Fixes: 746bfe63bb ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Yoshihiro Shimoda 2017-04-26 20:50:09 +09:00 • committed by Greg Kroah-Hartman

parent dd65c0958b

commit cb53a4e03b

1 changed files with 25 additions and 3 deletions

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drivers/usb/gadget/udc/renesas_usb3.c

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