regmap: Add missing header for !CONFIG_REGMAP stubs

regmap.h requires linux/err.h if CONFIG_REGMAP is not defined. Without it I get
error.
CC      drivers/media/platform/exynos4-is/fimc-reg.o
In file included from drivers/media/platform/exynos4-is/fimc-reg.c:14:0:
include/linux/regmap.h: In function ‘regmap_write’:
include/linux/regmap.h:525:10: error: ‘EINVAL’ undeclared (first use in this function)
include/linux/regmap.h:525:10: note: each undeclared identifier is reported only once for each function it appears in

Signed-off-by: Mateusz Krawczuk <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Cc: [email protected]

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 75981d0b57dccd4b6a3b5e9833557973f33d9404..580a5320cc96afd21807cddaaa40bdff47694d5d 100644 (file)
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -15,6 +15,7 @@
 
 #include <linux/list.h>
 #include <linux/rbtree.h>
+#include <linux/err.h>
 
 struct module;
 struct device;