将wifi驱动编译进内核出现报错

[openwrt@localhost barrier_breaker]$ make V=99
make[1]: Entering directory `/home/openwrt/7620/openwrt/barrier_breaker'
make[2]: Entering directory `/home/openwrt/7620/openwrt/barrier_breaker'
make[3]: Entering directory `/home/openwrt/7620/openwrt/barrier_breaker/target/linux'
make[4]: Entering directory `/home/openwrt/7620/openwrt/barrier_breaker/target/linux/ramips'
/home/openwrt/7620/openwrt/barrier_breaker/scripts/kconfig.pl  + /home/openwrt/7620/openwrt/barrier_breaker/target/linux/generic/config-3.10 /home/openwrt/7620/openwrt/barrier_breaker/target/linux/ramips/mt7620a/config-3.10 > /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config.target
awk '/^(#[[:space:]]+)?CONFIG_KERNEL/{sub("CONFIG_KERNEL_","CONFIG_");print}' /home/openwrt/7620/openwrt/barrier_breaker/.config >> /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config.target
echo "# CONFIG_KALLSYMS_EXTRA_PASS is not set" >> /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config.target
echo "# CONFIG_KALLSYMS_ALL is not set" >> /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config.target
echo "# CONFIG_KALLSYMS_UNCOMPRESSED is not set" >> /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config.target
echo "# CONFIG_KPROBES is not set" >> /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config.target
/home/openwrt/7620/openwrt/barrier_breaker/scripts/metadata.pl kconfig /home/openwrt/7620/openwrt/barrier_breaker/tmp/.packageinfo /home/openwrt/7620/openwrt/barrier_breaker/.config > /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config.override
/home/openwrt/7620/openwrt/barrier_breaker/scripts/kconfig.pl 'm+' '+' /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config.target /dev/null /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config.override > /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config
bash: /home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.config: Permission denied
make[4]: *** [/home/openwrt/7620/openwrt/barrier_breaker/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7620a/linux-3.10.49/.configured] Error 1
make[4]: Leaving directory `/home/openwrt/7620/openwrt/barrier_breaker/target/linux/ramips'
make[3]: *** [compile] Error 2
make[3]: Leaving directory `/home/openwrt/7620/openwrt/barrier_breaker/target/linux'
make[2]: *** [target/linux/compile] Error 2
make[2]: Leaving directory `/home/openwrt/7620/openwrt/barrier_breaker'
make[1]: *** [/home/openwrt/7620/openwrt/barrier_breaker/staging_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/stamp/.target_compile] Error 2
make[1]: Leaving directory `/home/openwrt/7620/openwrt/barrier_breaker'
make: *** [world] 错误 2