[PATCH] gpio: pch: add slab include

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

After change 3ff35cbcfa4bc7d7dbdd0279e32ea677567ded02
"gpio-pch: Fix Kconfig dependencies"
which enabled COMPILE_TEST as an alternative for the PCH
driver, we get build failures like this:

drivers/gpio/gpio-pch.c: In function 'pch_gpio_probe':
drivers/gpio/gpio-pch.c:359:2: error: implicit declaration
of function 'kzalloc' [-Werror=implicit-function-declaration]
drivers/gpio/gpio-pch.c:359:7: warning: assignment makes
pointer from integer without a cast [enabled by default]
drivers/gpio/gpio-pch.c:442:2: error: implicit declaration
of function 'kfree' [-Werror=implicit-function-declaration]

Fix this by including <linux/slab.h> explicitly.

Cc: Jean Delvare <jdelvare@xxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
---
 drivers/gpio/gpio-pch.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index 83a156397474..d6eac9b17db9 100644
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -20,6 +20,7 @@
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/slab.h>
 
 #define PCH_EDGE_FALLING	0
 #define PCH_EDGE_RISING		BIT(0)
-- 
1.9.0

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