[PATCH 3.14 160/228] ARM: mvebu: mvebu-soc-id: add missing clk_put() call

Greg Kroah-Hartman
2014-06-05T00:16:13Z

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

commit 42a18d1cf484d02e23afadfa5dc09356e6bef9fa upstream.

The mvebu-soc-id code in mach-mvebu/ needs to enable a clock to read
the SoC device ID and revision number. To do so, it does a clk_get(),
then a clk_prepare_enable(), reads the value, and disables the clock
with clk_disable_unprepare(). However, it forgets to clk_put() the
clock. This commit fixes this issue.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1399903900-29977-2-git-send-email-thomas.petazzoni@free-electrons.com
Fixes: af8d1c63afcb ("ARM: mvebu: Add support to get the ID and the revision of a SoC")
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
arch/arm/mach-mvebu/mvebu-soc-id.c | 1 +
1 file changed, 1 insertion(+)

--- a/arch/arm/mach-mvebu/mvebu-soc-id.c
+++ b/arch/arm/mach-mvebu/mvebu-soc-id.c
@@ -108,6 +108,7 @@ static int __init mvebu_soc_id_init(void

res_ioremap:
clk_disable_unprepare(clk);
+ clk_put(clk);

clk_err:
of_node_put(child);