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authorBin Liu <b-liu@ti.com>2018-07-19 14:39:37 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-21 08:38:29 +0200
commit249a32b7eeb3edb6897dd38f89651a62163ac4ed (patch)
tree66fb6811f6d727c09d048b8401fda320c7d0ca43 /drivers/dca
parentd89b7664f76047e7beca8f07e86f2ccfad085a28 (diff)
usb: core: handle hub C_PORT_OVER_CURRENT condition
Based on USB2.0 Spec Section 11.12.5, "If a hub has per-port power switching and per-port current limiting, an over-current on one port may still cause the power on another port to fall below specific minimums. In this case, the affected port is placed in the Power-Off state and C_PORT_OVER_CURRENT is set for the port, but PORT_OVER_CURRENT is not set." so let's check C_PORT_OVER_CURRENT too for over current condition. Fixes: 08d1dec6f405 ("usb:hub set hub->change_bits when over-current happens") Cc: <stable@vger.kernel.org> Tested-by: Alessandro Antenucci <antenucci@korg.it> Signed-off-by: Bin Liu <b-liu@ti.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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