linux-kernel - [PATCH v2] regulator: Add stub for devm_regulator_get

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Date:	Tue, 12 Aug 2014 09:37:09 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	Liam Girdwood <lgirdwood@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH v2] regulator: Add stub for devm_regulator_get_exclusive

Fix below build error when !CONFIG_REGULATOR.

  CC      drivers/gpu/drm/msm/hdmi/hdmi.o
drivers/gpu/drm/msm/hdmi/hdmi.c: In function 'hdmi_init':
drivers/gpu/drm/msm/hdmi/hdmi.c:126:3: error: implicit declaration of function 'devm_regulator_get_exclusive' [-Werror=implicit-function-declaration]

Also makes regulator_get_exclusive and devm_regulator_get_exclusive stub
functions return error pointer.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 include/linux/regulator/consumer.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index f8a8733..66473e3 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -262,7 +262,13 @@ devm_regulator_get(struct device *dev, const char *id)
 static inline struct regulator *__must_check
 regulator_get_exclusive(struct device *dev, const char *id)
 {
-	return NULL;
+	return ERR_PTR(-ENODEV);
+}
+
+static inline struct regulator *__must_check
+devm_regulator_get_exclusive(struct device *dev, const char *id)
+{
+	return ERR_PTR(-ENODEV);
 }
 
 static inline struct regulator *__must_check
-- 
1.9.1



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