linux-kernel - [PATCH 02/02] clk: clk-of: Use alloc

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Date:	Thu, 21 Jun 2012 03:32:04 -0400
From:	Chris Ball <cjb@...top.org>
To:	Rob Herring <robherring2@...il.com>
Cc:	Mitch Bradley <wmb@...top.org>, mturquette@...aro.org,
	devicetree-discuss@...ts.ozlabs.org, sboyd@...eaurora.org,
	linux-kernel@...r.kernel.org,
	Rob Herring <rob.herring@...xeda.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	skannan@...eaurora.org, shawn.guo@...aro.org,
	s.hauer@...gutronix.de, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 02/02] clk: clk-of: Use alloc_bootmem() instead of kzalloc()

When of_clk_add_provider() is used at boot time (during .init_early on
ARM, in the motivating case for this patch), kzalloc() cannot be used
because slab isn't up yet.

Signed-off-by: Chris Ball <cjb@...top.org>
---
 drivers/clk/clk-of.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/clk-of.c b/drivers/clk/clk-of.c
index 8b43416..adbb56b 100644
--- a/drivers/clk/clk-of.c
+++ b/drivers/clk/clk-of.c
@@ -22,6 +22,7 @@
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/of.h>
+#include <linux/bootmem.h>
 
 #ifdef CONFIG_OF
 
@@ -67,7 +68,7 @@ int of_clk_add_provider(struct device_node *np,
 {
 	struct of_clk_provider *cp;
 
-	cp = kzalloc(sizeof(struct of_clk_provider), GFP_KERNEL);
+	cp = alloc_bootmem(sizeof(struct of_clk_provider));
 	if (!cp)
 		return -ENOMEM;
 
-- 
Chris Ball   <cjb@...top.org>   <http://printf.net/>
One Laptop Per Child
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