[PATCH 1/4] pinctrl: dove: Prevent NULL dereference if of_match_device returns NULL
From: Thomas Petazzoni <hidden>
Date: 2012-11-15 07:35:22
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Dear Axel Lin, On Thu, 15 Nov 2012 12:51:36 +0800, Axel Lin wrote:
of_match_device() may return NULL. Signed-off-by: Axel Lin <redacted>
Could you detail under what conditions of_match_device() may return NULL in the specific case of this driver? This of_match_device() call is using the same dove_pinctrl_of_match array that is used to ->probe() this driver. So I don't see how you can get into ->probe() without having a matching entry. Am I missing something? Best regards, Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com