FreeBSD/src c12f402 (r346558)sys/arm/freescale/imx imx_spi.c

MFC r345000:

Mark the imx_spi device busy while transfers are in progress, so that the
module can't be unloaded while interrupts are pending.
DeltaFile
+5-4sys/arm/freescale/imx/imx_spi.c
+5-41 files

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