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Re: [PATCH 1/3] clk: keystone: Fix an error checking

From Stephen Boyd <sboyd@codeaurora.org>
Newsgroups linux.kernel
Subject Re: [PATCH 1/3] clk: keystone: Fix an error checking
Date 2016-11-02 01:30 +0100
Message-ID <syRBf-7p6-7@gated-at.bofh.it> (permalink)
References <svUlY-4eX-5@gated-at.bofh.it> <svUlY-4eX-23@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 10/24, Christophe JAILLET wrote:
> clk_register_pll() can return ERR_PTR(-ENOMEM) so checking the return value
> against NULL only is not correct.

The code just doesn't propagate the error up to the caller.
Instead the caller treats NULL as an error and non-NULL as valid.
If the callee detects an error it hides it and returns NULL.

> In order to fix it, update clk_register_pll() to always return an error
> pointer in case of error and check the return value with IS_ERR.
> 
> While at it, also fix a tab vs space in the surrounding code.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> Un-compiled and un-tested.

Please at least compile test patches.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

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Thread

Re: [PATCH 1/3] clk: keystone: Fix an error checking Stephen Boyd <sboyd@codeaurora.org> - 2016-11-02 01:30 +0100
  Re: [PATCH 1/3] clk: keystone: Fix an error checking Christophe JAILLET <christophe.jaillet@wanadoo.fr> - 2016-11-04 06:50 +0100

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