[PATCH] clk: samsung: exynos5433: Add missing slab.h header for kfree()

[Krzysztof Kozlowski]

Usage of kfree() requires slab.h header.  Otherwise building on x86_64
with COMPILE_TEST fails with:

    drivers/clk/samsung/clk-exynos5433.c: In function âexynos5433_cmu_probeâ:
    drivers/clk/samsung/clk-exynos5433.c:5598:4: error: implicit declaration of function âkfreeâ; did you mean âvfreeâ? [-Werror=implicit-function-declaration]

Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
 drivers/clk/samsung/clk-exynos5433.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 0b60316331a0..4b1aa9382ad2 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -13,6 +13,7 @@
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/slab.h>
 
 #include <dt-bindings/clock/exynos5433.h>
 
-- 
2.17.1