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/Linux-v4.19/drivers/rapidio/devices/
Drio_mport_cdev.c266 struct rio_mport_maint_io maint_io; in rio_mport_maint_rd() local
272 if (unlikely(copy_from_user(&maint_io, arg, sizeof(maint_io)))) in rio_mport_maint_rd()
275 if ((maint_io.offset % 4) || in rio_mport_maint_rd()
276 (maint_io.length == 0) || (maint_io.length % 4) || in rio_mport_maint_rd()
277 (maint_io.length + maint_io.offset) > RIO_MAINT_SPACE_SZ) in rio_mport_maint_rd()
280 buffer = vmalloc(maint_io.length); in rio_mport_maint_rd()
283 length = maint_io.length/sizeof(u32); in rio_mport_maint_rd()
284 offset = maint_io.offset; in rio_mport_maint_rd()
291 ret = rio_mport_read_config_32(mport, maint_io.rioid, in rio_mport_maint_rd()
292 maint_io.hopcount, offset, &buffer[i]); in rio_mport_maint_rd()
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