linux-kernel - [Suggestion] kernel/irqdesc.c: not checking whether failure occurs for alloc_desc() in early_irq

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Date:	Tue, 14 May 2013 18:45:00 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [Suggestion] kernel/irqdesc.c: not checking whether failure occurs
 for alloc_desc() in early_irq_init().

Hello Maintainers:

For early_irq_init(), it may be failure (can return an error code), and
for alloc_desc(), also may return 'NULL' when '-ENOMEM'.

But it seems the authors are sure that early_irq_init() are always
success, is it correct ? (or early_irq_init() will never be used ?)

I think, it is better to also check alloc_desc() return value in
early_irq_init().

Please help check when you have time.

Thanks.
-- 
Chen Gang

Asianux Corporation
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