Re: [PATCH 1/4] OF: Add helper for matching against linux, stdout-path
From: Lothar Waßmann <hidden>
Date: 2012-11-22 05:33:13
Also in:
linux-arm-kernel, linux-serial
Possibly related (same subject, not in this thread)
- 2012-11-22 · Re: [PATCH 1/4] OF: Add helper for matching against linux, stdout-path · Grant Likely <hidden>
Hi, Sascha Hauer writes:
On Wed, Nov 21, 2012 at 04:57:05PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:quoted
From: Sascha Hauer <s.hauer@pengutronix.de> devicetrees may have a linux,stdout-path or stdout-path property in the chosen node describing the console device. This adds a helper function to match a device against this property and retrieve the options so a driver can call add_preferred_console for a matching device.
[...]
quoted
+ if (!tmp) + return 0; + + dn_stdout = of_find_node_by_path(tmp); + + if (dn_stdout && dn_stdout == dn) { + is_stdout = 1; + tmp_option++; + *option = kstrdup(tmp_option, GFP_KERNEL); + } + + of_node_put(dn_stdout);dn_stdout may be NULL aswell.
which is handled gracefully by of_node_put()... Lothar Waßmann -- ___________________________________________________________ Ka-Ro electronics GmbH | Pascalstraße 22 | D - 52076 Aachen Phone: +49 2408 1402-0 | Fax: +49 2408 1402-10 Geschäftsführer: Matthias Kaussen Handelsregistereintrag: Amtsgericht Aachen, HRB 4996 www.karo-electronics.de | info@karo-electronics.de ___________________________________________________________ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel