From: Benoit Cousson <b-cousson@ti.com>
Date: Mon, 5 Dec 2011 14:23:54 +0000 (+0100)
Subject: of/base: Take NULL string into account for property with multiple strings
X-Git-Tag: v3.3-rc1~63^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=88af7f58c6f1fa28d617392c791f11317bcb590d;p=pandora-kernel.git

of/base: Take NULL string into account for property with multiple strings

The current implementation just ignore any NULL string inserted in a
multiple strings property.
In some cases we can have a property with a fix number of strings but
not necessarily used, like for example in a list of valid pinmux modes.

 prop = "uart_rx", "uart_tx", "", "", "safe_mode";

Do no skip NULL string and take them into account in
of_property_read_string_index and of_property_count_strings.

Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
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