[PATCH RESEND] regulator: Add stub for devm_regulator_get_exclusive

[Axel Lin]

Also makes regulator_get_exclusive and devm_regulator_get_exclusive stub
functions return error pointer.

Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
Hi Mark,
I hit below build error and then found this patch is still not yet upstream.
So here is a resend.

  CC [M]  drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.o
drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c: In function 'mdp4_kms_init':
drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c:384:2: error: implicit declaration of function 'devm_regulator_get_exclusive' [-Werror=implicit-function-declaration]
drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c:384:16: error: assignment makes pointer from integer without a cast [-Werror]
cc1: all warnings being treated as errors
make[4]: *** [drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.o] Error 1
make[3]: *** [drivers/gpu/drm/msm] Error 2
make[2]: *** [drivers/gpu/drm] Error 2
make[1]: *** [drivers/gpu] Error 2
make: *** [drivers] Error 2

 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 d347c80..f124c08 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -282,7 +282,13 @@ 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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