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authorAnssi Hannula <anssi.hannula@bitwise.fi>2017-02-08 13:13:40 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-28 07:45:03 +0200
commit7e572a170fc30ce4e6bff79b2a54f445a88457ac (patch)
tree5441811856d844dc5dea51097c33003bc2f40b73 /lib/mpi/mpi-internal.h
parente4c557649fda285e512f28a771038180cdeff6cf (diff)
can: xilinx_can: fix recovery from error states not being propagated
commit 877e0b75947e2c7acf5624331bb17ceb093c98ae upstream. The xilinx_can driver contains no mechanism for propagating recovery from CAN_STATE_ERROR_WARNING and CAN_STATE_ERROR_PASSIVE. Add such a mechanism by factoring the handling of XCAN_STATE_ERROR_PASSIVE and XCAN_STATE_ERROR_WARNING out of xcan_err_interrupt and checking for recovery after RX and TX if the interface is in one of those states. Tested with the integrated CAN on Zynq-7000 SoC. Fixes: b1201e44f50b ("can: xilinx CAN controller support") Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi> Cc: <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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