linux-kernel - [PATCH 3.16 213/294] iio: adc: fix building on 64-bit

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Date:   Mon, 06 Nov 2017 23:03:02 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Arnd Bergmann" <arnd@...db.de>
Subject: [PATCH 3.16 213/294] iio: adc: fix building on 64-bit

3.16.50-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@...db.de>

On the 3.16 kernel, we get a harmless warning:

drivers/iio/adc/exynos_adc.c: In function 'exynos_adc_get_version':
drivers/iio/adc/exynos_adc.c:112:9: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]

Upstream commit e49d99e0ecc8 ("iio: adc: exynos_adc: Add exynos_adc_data
structure to improve readability") in 3.17 removed the function, so
we can't backport a fix from upstream, but changing the cast to
use uintptr_t is the obvious fix.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/iio/adc/exynos_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -109,7 +109,7 @@ static inline unsigned int exynos_adc_ge
 	const struct of_device_id *match;
 
 	match = of_match_node(exynos_adc_match, pdev->dev.of_node);
-	return (unsigned int)match->data;
+	return (uintptr_t)match->data;
 }
 
 static void exynos_adc_hw_init(struct exynos_adc *info)