Messages in this thread | | | Date | Thu, 8 Nov 2012 14:13:46 +0800 | Subject | Re: [PATCH] rtc: avoid calling platform_device_put() twice in test_init() | From | Wei Yongjun <> |
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On 11/07/2012 08:51 AM, Andrew Morton wrote: > On Tue, 23 Oct 2012 13:08:41 +0800 > Wei Yongjun <weiyj.lk@gmail.com> wrote: > >> From: Wei Yongjun <yongjun_wei@trendmicro.com.cn> >> >> In case of error, the function test_init() need to call >> platform_device_del() instead of platform_device_unregister(). >> Otherwise, we may call platform_device_put() twice. >> > Is platform_device_del() the partner to platform_device_add()? If so > then yes, this looks right. But I think the labels can be improved: > > _ > > > However, take a look at test_exit(). it does > platform_device_unregister(test0) when test0 is in the same state. Is > that code wrong as well? Presumably it's working OK?
platform_device_unregister() is a warp of platform_device_del() and platform_device_put(), if platform_device_add() success, we can use platform_device_unregister() to do this, so that code is OK.
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