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Open Source and information security mailing list archives
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Date: Sat, 04 Jul 2009 12:01:34 -0600 From: Robert Hancock <hancockrwd@...il.com> To: "Robert P. J. Day" <rpjday@...shcourse.ca> CC: Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: value of returning positive error code from module_init()? On 07/04/2009 10:38 AM, Robert P. J. Day wrote: > whoops, i forgot to ask this as well. accidentally, i returned a > positive value from a module_init() routine, which loaded the module > and generated in /var/log/messages: > > ... > Jul 4 12:34:43 localhost kernel: hi module being loaded. > Jul 4 12:34:43 localhost kernel: sys_init_module: 'hi'->init > suspiciously returned 42, it should follow 0/-E convention > Jul 4 12:34:43 localhost kernel: sys_init_module: loading module > anyway... > Jul 4 12:34:43 localhost kernel: Pid: 3881, comm: insmod Tainted: G > M 2.6.29.5-191.fc11.x86_64 #1 > Jul 4 12:34:43 localhost kernel: Call Trace: > Jul 4 12:34:43 localhost kernel: [<ffffffff8106f33b>] > sys_init_module+0x13e/0x1cd > Jul 4 12:34:43 localhost kernel: [<ffffffff8101133a>] > system_call_fastpath+0x16 > ... > > i'd never seen that before, i guess because i never returned a > positive error code. is there a tradition for returning positive > values? for what purpose? thanks. My guess would be no, hence the warning you're not supposed to do it.. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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