From mboxrd@z Thu Jan 1 00:00:00 1970 From: viresh kumar Subject: Re: [PATCH] fs/eventpoll.c: fix compilation warning Date: Fri, 14 Jan 2011 15:08:21 +0530 Message-ID: <4D30198D.9080206@st.com> References: <1294989352-2003-1-git-send-email-viresh.kumar@st.com> <2426ea8f-7e52-4329-bf20-884c2b996f98@email.android.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: "linux-kernel@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" To: Jack Stone Return-path: In-Reply-To: <2426ea8f-7e52-4329-bf20-884c2b996f98@email.android.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On 01/14/2011 03:03 PM, Jack Stone wrote: >> >- long slack; >> >+ long slack = 0; >> > wait_queue_t wait; >> > struct timespec end_time; >> > ktime_t expires, *to = NULL; > I don't think this is the correct fix. This function is fine unless timeout is negative. > > If a negative timeout is possible then this function will create timer far in the future. >I'll leave it up to the maintainer how to solve that one. The two solutions I can see are making >timeout unsigned or extending the bottom case of the if to <=0. > > Either way we should use uninitalized_var() rather than setting it to zero. Using uninitialized var gives compilation warning, How should we fix that. -- viresh