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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2018-02-18 22:02:45 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-02-28 15:29:59 +0100
commit4238c00bb154be840c11540a81c5e99faa06a631 (patch)
tree2db749fed2e7ee6bb7638d3395bda7eac785a79f /net/mac802154
parent437768962f754d9501e5ba4d98b1f2a89dc62028 (diff)
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serial: imx: simplify tracking of dma being initialized
The .dma_is_inited member is only set to a value != 0 when the port's startup function calls imx_uart_dma_init(). On shutdown of the port imx_uart_dma_exit is called which sets the value back to 0. So .dma_is_inited is always 0 when imx_startup() is called (assuming .startup() and .shutdown() are correctly balanced) and the check for !sport->dma_is_inited can go away. This allows to replace .dma_is_inited by a variable local to imx_startup. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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