MIPS: Xway: Fix clk leak

When gptu_r32 fails, we should put clk before returning.
Signed-off-by: NLibo Chen <libo.chen@huawei.com>
Acked-by: NJohn Crispin <blogic@openwrt.org>
Cc: grant.likely@linaro.org
Cc: rob.herring@calxeda.com,
Cc: linux-mips@linux-mips.org
Cc: LKML linux-kernel@vger.kernel.org
Cc: Andrew Morton akpm@linux-foundation.org
Cc: Li Zefan lizefan@huawei.com
Patchwork: https://patchwork.linux-mips.org/patch/5247/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/lantiq/xway/gptu.c

@@ -169,6 +169,8 @@ static int gptu_probe(struct platform_device *pdev)
 	if (((gptu_r32(GPTU_ID) >> 8) & 0xff) != GPTU_MAGIC) {
 		dev_err(&pdev->dev, "Failed to find magic\n");
 		gptu_hwexit();
+		clk_disable(clk);
+		clk_put(clk);
 		return -ENAVAIL;
 	}