From mboxrd@z Thu Jan 1 00:00:00 1970 From: grinberg@compulab.co.il (Igor Grinberg) Date: Thu, 03 Feb 2011 13:12:32 +0200 Subject: [PATCHv2 1/2] ads7846: OMAP3: Removal of warnings backtrace in bootup In-Reply-To: References: <1296726514-32146-1-git-send-email-sourav.poddar@ti.com> <4D4A7F13.8080502@compulab.co.il> <4D4A80D3.2060407@compulab.co.il> Message-ID: <4D4A8DA0.1010806@compulab.co.il> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 02/03/11 13:00, Poddar, Sourav wrote: > On Thu, Feb 3, 2011 at 3:47 PM, Igor Grinberg wrote: >> if (pdata->get_pendown_state) { >> ts->get_pendown_state = pdata->get_pendown_state; >> ts->gpio_pendown = -1; >> return 0; >> } > Yes we can do so .I initialise it at a place where other variables > where initialised. > >>> Also, why don't we use -EINVAL for the invalid gpio number instead of -1 constant? >>> > I used -1 because conditional check done in probe ads7846_probe function > used this value. > > err_free_gpio: > if (ts->gpio_pendown != -1) > gpio_free(ts->gpio_pendown); > Well I understand that and that's why in my proposal I used -1 also, but I thought we can make it even better if we switch to -EINVAL (though wanted to check if there are any reasonable objections) and while you are at this, may be you are willing also to submit a patch for this? -- Regards, Igor.