请教，我在linux下（2.6.32）进行gpio模拟spi操作，但是当我调用spi_register_board_info
函数的时候，代码死机了，其具体情况如下：
static struct spi_board_info stm32_board_info = {
.modalias = "stm32-spi",
.max_speed_hz = 10000000,
.bus_num = 1,
.mode = SPI_MODE_0,
};
ret = spi_register_board_info(&stm32_board_info, 1);
死机了：
do_cpu invoked from kernel context![#1]:
Cpu 0
$ 0 : 00000000 004fdbd6 0000001f 00000001
$ 4 : 81c97c84 00000001 ffffffff 80126830
$ 8 : 3a207061 72616c6c 00000000 7271210a
$12 : 7fa41760 00103044 2a60d837 00000000
$16 : 826e02c0 81fa1e08 826e0000 7fa417f0
$20 : 81fa1e08 0049a688 004e9d90 004fdb68
$24 : 00000000 80125f34
$28 : 81fa0000 81fa1930 004fdbc6 81c82684
Hi : 00000000
Lo : 17b44000
epc : 801df82c spi_register_board_info+0x4/0xa0 // 该接口挂了
Tainted: P
ra : 81c82684 para_init+0x30/0xd8 [umac]
Status: 1000ff03 KERNEL EXL IE
Cause : 9080002c
PrId : 00019374 (MIPS 24Kc)
Modules linked in: wvas_wloc wbs_sec aclk rg_data_plane efqos_kernel roamk rg_wvlan proc_info ar93xx_et eth_subif umac ath_dev(P) ath_rate_atheros(P) ath_hal asf(P) adf(P) wbs_fwd_intf capwap_kernel rg_wlibk wbuf wbs_mng ef_bridge_ko af_packet ipv4 ref_ip eth_parser srvk net2con fpm_k ref_frame lsm_ko wbs_dev dm_chardev env_utils setmac_utils product_info_utils get_envi mtdoops rg_console rg_sysfs rg_thread_det rg_lowmem_killer rg_dprintk
Process wbs_mng.elf (pid: 603, threadinfo=81fa0000, task=82a64038, tls=2aab7770)
Stack : 00000009 81c8c89c 00000000 00000010 826e02c0 81c81094 81fa1a88 81fa1b70
00000006 00000000 00000001 00000000 00000005 00000001 81fa1e08 81c4bd1c
00000000 00000042 004fdbc6 00000010 00000000 00000000 81fa1b2c 00000000
00000000 00000001 81fa1a50 81fa1a5c 81fa1a50 00000003 00000000 00000000
00060000 8089c000 00000000 00060001 000000ff 00000000 00060000 004e0000
...
Call Trace:
[] spi_register_board_info+0x4/0xa0
[] para_init+0x30/0xd8 [umac]
[] rj_ath_wloc_set_tcl_cb+0x12c/0x14c [umac]
[] ath_ioctl+0x1b8/0x82c [umac]
[] dev_ioctl+0x664/0x71c
[] vfs_ioctl+0x2c/0x70
[] do_vfs_ioctl+0x5a0/0x5f8
[] sys_ioctl+0x48/0x7c
[] stack_done+0x20/0x3c
Code: 000003f1 0001678c 00000004 00000001 00016620 00000000 1100fff1 000004d2
Fatal exception: panic in 5 seconds
Kernel panic - not syncing: Fatal exception
Call Trace:
[] dump_stack+0x8/0x34
[] panic+0x68/0x13c
[] die+0xc8/0xd0
[] do_cpu+0x38/0x268
[] ret_from_exception+0x0/0xc
[] spi_register_board_info+0x4/0xa0
[] para_init+0x30/0xd8 [umac]
[] rj_ath_wloc_set_tcl_cb+0x12c/0x14c [umac]
[] ath_ioctl+0x1b8/0x82c [umac]
[] dev_ioctl+0x664/0x71c
[] vfs_ioctl+0x2c/0x70
[] do_vfs_ioctl+0x5a0/0x5f8
[] sys_ioctl+0x48/0x7c
[] stack_done+0x20/0x3c
自身没感觉到调用的时候产生了啥错误，请帮忙指点下；
