MFD: mcp-core: fix mcp_priv() to be more type safe

mcp_priv() does unexpected things when passed a void pointer.  Make it
a typed inline function, which ensures that it works correctly in
these cases.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/mfd/mcp.h b/include/linux/mfd/mcp.h
index ee496708e38b..f88c1cc0cb0f 100644
--- a/include/linux/mfd/mcp.h
+++ b/include/linux/mfd/mcp.h
@@ -64,6 +64,9 @@ void mcp_driver_unregister(struct mcp_driver *);
 #define mcp_get_drvdata(mcp)    dev_get_drvdata(&(mcp)->attached_device)
 #define mcp_set_drvdata(mcp,d)  dev_set_drvdata(&(mcp)->attached_device, d)
 
-#define mcp_priv(mcp)           ((void *)((mcp)+1))
+static inline void *mcp_priv(struct mcp *mcp)
+{
+        return mcp + 1;
+}
 
 #endif