ARM: mvebu: mvebu-soc-id: add missing clk_put() call

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 <[email protected]>
Link: https://lkml.kernel.org/r/1399903900-29977-2-git-send-email-thomas.petazzoni@free-electrons.com
Cc: <[email protected]> # 3.14+
Fixes: af8d1c63afcb ("ARM: mvebu: Add support to get the ID and the revision of a SoC")
Acked-by: Gregory CLEMENT <[email protected]>
Tested-by: Gregory CLEMENT <[email protected]>
Tested-by: Andrew Lunn <[email protected]>
Tested-by: Willy Tarreau <[email protected]>
Signed-off-by: Jason Cooper <[email protected]>

diff --git a/arch/arm/mach-mvebu/mvebu-soc-id.c b/arch/arm/mach-mvebu/mvebu-soc-id.c
index f3d4cf53f7466ba6c44f5ef1d91484e3ce8f62e6..b52af6f4a0c6de26ca5ab690f464d3e8949f1019 100644 (file)
--- a/arch/arm/mach-mvebu/mvebu-soc-id.c
+++ b/arch/arm/mach-mvebu/mvebu-soc-id.c
@@ -109,6 +109,7 @@ static int __init mvebu_soc_id_init(void)
 
 res_ioremap:
        clk_disable_unprepare(clk);
+       clk_put(clk);
 
 clk_err:
        of_node_put(child);