Blackfin: debug-mmrs: prevent macro arg from expanding
Passing a non-simple expression in as the addr arg could incorrectly
apply the pointer cast resulting in misbehavior. Add proper paren.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/kernel/debug-mmrs.c b/arch/blackfin/kernel/debug-mmrs.c
index 26ebfe8..bafae87 100644
--- a/arch/blackfin/kernel/debug-mmrs.c
+++ b/arch/blackfin/kernel/debug-mmrs.c
@@ -27,7 +27,7 @@
#define PORT_MUX BFIN_PORT_MUX
#endif
-#define _d(name, bits, addr, perms) debugfs_create_x##bits(name, perms, parent, (u##bits *)addr)
+#define _d(name, bits, addr, perms) debugfs_create_x##bits(name, perms, parent, (u##bits *)(addr))
#define d(name, bits, addr) _d(name, bits, addr, S_IRUSR|S_IWUSR)
#define d_RO(name, bits, addr) _d(name, bits, addr, S_IRUSR)
#define d_WO(name, bits, addr) _d(name, bits, addr, S_IWUSR)