diff options
Diffstat (limited to 'device')
| -rw-r--r-- | device/ds_routines.c | 68 |
1 files changed, 34 insertions, 34 deletions
diff --git a/device/ds_routines.c b/device/ds_routines.c index 9f3e039..fc7cde9 100644 --- a/device/ds_routines.c +++ b/device/ds_routines.c @@ -1,25 +1,25 @@ -/* +/* * Mach Operating System * Copyright (c) 1993,1991,1990,1989 Carnegie Mellon University * All Rights Reserved. - * + * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. - * + * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * + * * Carnegie Mellon requests users of this software to return to - * + * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 - * + * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ @@ -692,7 +692,7 @@ device_write_get(ior, wait) if (result != KERN_SUCCESS) return (result); - if ((ior->io_data + ior->io_count) > + if ((ior->io_data + ior->io_count) > (((char *)new_addr) + ior->io_alloc_size)) { /* @@ -708,7 +708,7 @@ device_write_get(ior, wait) * Caller must wait synchronously. */ ior->io_op &= ~IO_CALL; - *wait = TRUE; + *wait = TRUE; } ior->io_copy = io_copy; /* vm_map_copy to discard */ @@ -727,7 +727,7 @@ device_write_dealloc(ior) vm_map_copy_t io_copy; kern_return_t result; vm_offset_t size_to_do; - int bsize; + int bsize; if (ior->io_alloc_size == 0) return (TRUE); @@ -740,7 +740,7 @@ device_write_dealloc(ior) return (TRUE); } - + if ((io_copy = ior->io_copy) == VM_MAP_COPY_NULL) return (TRUE); @@ -758,7 +758,7 @@ device_write_dealloc(ior) if (vm_map_copy_has_cont(io_copy)) { /* - * Remember how much is left, then + * Remember how much is left, then * invoke or abort the continuation. */ size_to_do = io_copy->size - ior->io_count; @@ -789,7 +789,7 @@ device_write_dealloc(ior) if (res != D_SUCCESS) panic("device_write_dealloc: No block size"); - + ior->io_recnum += ior->io_count/bsize; ior->io_count = new_copy->size; } @@ -1029,7 +1029,7 @@ ds_device_read_inband(device, reply_port, reply_port_type, mode, recnum, ior->io_mode = mode; ior->io_recnum = recnum; ior->io_data = 0; /* driver must allocate data */ - ior->io_count = + ior->io_count = ((bytes_wanted < sizeof(io_buf_ptr_inband_t)) ? bytes_wanted : sizeof(io_buf_ptr_inband_t)); ior->io_alloc_size = 0; /* no data allocated yet */ @@ -1115,7 +1115,7 @@ boolean_t ds_read_done(ior) start_sent = (ior->io_op & IO_INBAND) ? start_data : trunc_page(start_data); - end_sent = (ior->io_op & IO_INBAND) ? + end_sent = (ior->io_op & IO_INBAND) ? start_data + ior->io_alloc_size : round_page(end_data); /* @@ -1587,8 +1587,8 @@ ds_trap_write_done(io_req_t ior) /* * Should look at reply port and maybe send a message. */ - zfree(io_trap_zone, ior); - + zfree(io_trap_zone, (vm_offset_t) ior); + /* * Give up device reference from ds_write_trap. */ @@ -1628,14 +1628,14 @@ ds_device_write_trap(device_t device, if (device->state != DEV_STATE_OPEN) return (D_NO_SUCH_DEVICE); - + /* XXX note that a CLOSE may proceed at any point */ - + /* * Get a buffer to hold the ioreq. */ ior = ds_trap_req_alloc(device, data_count); - + /* * Package the write request for the device driver. */ @@ -1661,29 +1661,29 @@ ds_device_write_trap(device_t device, */ if (data_count > 0) copyin((char *)data, (char *)ior->io_data, data_count); - + /* * The ior keeps an extra reference for the device. */ mach_device_reference(device); - + /* * And do the write. */ result = (*device->dev_ops->d_write)(device->dev_number, ior); - + /* * If the IO was queued, delay reply until it is finished. */ if (result == D_IO_QUEUED) return (MIG_NO_REPLY); - + /* * Remove the extra reference. */ mach_device_deallocate(device); - - zfree(io_trap_zone, ior); + + zfree(io_trap_zone, (vm_offset_t) ior); return (result); } @@ -1719,9 +1719,9 @@ ds_device_writev_trap(device_t device, if (device->state != DEV_STATE_OPEN) return (D_NO_SUCH_DEVICE); - + /* XXX note that a CLOSE may proceed at any point */ - + /* * Copyin user addresses. */ @@ -1737,7 +1737,7 @@ ds_device_writev_trap(device_t device, * Get a buffer to hold the ioreq. */ ior = ds_trap_req_alloc(device, data_count); - + /* * Package the write request for the device driver. */ @@ -1772,29 +1772,29 @@ ds_device_writev_trap(device_t device, p += stack_iovec[i].count; } } - + /* * The ior keeps an extra reference for the device. */ mach_device_reference(device); - + /* * And do the write. */ result = (*device->dev_ops->d_write)(device->dev_number, ior); - + /* * If the IO was queued, delay reply until it is finished. */ if (result == D_IO_QUEUED) return (MIG_NO_REPLY); - + /* * Remove the extra reference. */ mach_device_deallocate(device); - - zfree(io_trap_zone, ior); + + zfree(io_trap_zone, (vm_offset_t) ior); return (result); } |