On Mon, 2012-09-17 at 12:58 +0100, Srinivas KANDAGATLA wrote:
> From: Srinivas Kandagatla <srinivas.kandaga...@st.com>
>
> As follow-up to "dt: introduce of_get_child_by_name to get child node by
> name." patch, This patch removes some of the code duplication in the
> driver by replacing it with of_get_child_by_name instead.
>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandaga...@st.com>
> ---
> arch/powerpc/platforms/powernv/opal.c | 6 +++---
> 1 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/powerpc/platforms/powernv/opal.c
> b/arch/powerpc/platforms/powernv/opal.c
> index aaa0dba..fc7ae70 100644
> --- a/arch/powerpc/platforms/powernv/opal.c
> +++ b/arch/powerpc/platforms/powernv/opal.c
> @@ -294,9 +294,9 @@ static int __init opal_init(void)
> consoles = of_node_get(opal_node);
>
> /* Register serial ports */
> - for_each_child_of_node(consoles, np) {
> - if (strcmp(np->name, "serial"))
> - continue;
> + np = of_get_child_by_name(consoles, "serial");
> + if (np) {
> + of_node_put(np);
> of_platform_device_create(np, NULL, NULL);
You mustn't drop the reference until after you've finished with np, as
you have written it the node could be freed before you call
of_platform_device_create().
cheers
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