WARNING: at drivers/gpio/gpiolib.c:102 gpio_ensure_requested+0x54/0x124()
autorequest GPIO-42
Modules linked in: gpiomod
[<c0034284>] (unwind_backtrace+0x0/0x168) from [<c00433b4>] (warn_slowpath_common+0x4c/0x64)
[<c00433b4>] (warn_slowpath_common+0x4c/0x64) from [<c0043408>] (warn_slowpath_fmt+0x28/0x38)
[<c0043408>] (warn_slowpath_fmt+0x28/0x38) from [<c0250348>] (gpio_ensure_requested+0x54/0x124)
[<c0250348>] (gpio_ensure_requested+0x54/0x124) from [<c02504d8>] (gpio_direction_output+0xc0/0x180)
[<c02504d8>] (gpio_direction_output+0xc0/0x180) from [<bf000030>] (gpiomod_open+0x1c/0x34 [gpiomod])
[<bf000030>] (gpiomod_open+0x1c/0x34 [gpiomod]) from [<c00b00f0>] (chrdev_open+0x124/0x204)
[<c00b00f0>] (chrdev_open+0x124/0x204) from [<c00aaf04>] (__dentry_open.isra.18+0xf8/0x2a4)
[<c00aaf04>] (__dentry_open.isra.18+0xf8/0x2a4) from [<c00b8bb0>] (do_filp_open+0x5e4/0x998)
[<c00b8bb0>] (do_filp_open+0x5e4/0x998) from [<c00ac030>] (do_sys_open+0x5c/0x114)
[<c00ac030>] (do_sys_open+0x5c/0x114) from [<c002e960>] (ret_fast_syscall+0x0/0x28)
---[ end trace 044ddd221a02cc8e ]---