usb: gadget: udc: renesas_usb3: fix deadlock by spinlock

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commit 067d6fdc55 upstream.

This patch fixes an issue that this driver is possible to cause
deadlock by double-spinclocked in renesas_usb3_stop_controller().
So, this patch removes spinlock API calling in renesas_usb3_stop().
(In other words, the previous code had a redundant lock.)

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 20:50:08 +09:00 • committed by Greg Kroah-Hartman

parent 723bd3b9f8

commit dd65c0958b

1 changed files with 0 additions and 3 deletions

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drivers/usb/gadget/udc/renesas_usb3.c

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