[PATCH] staging: greybus: fix gb_loopback_stats_attrs definition

[Shreyansh Chouhan]

The gb_loopback_stats_attrs macro, (defined in loopback.c,) is a
multiline macro whose statements were not enclosed in a do while
loop.

This patch adds a do while loop around the statements of the said
macro.

Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh630@xxxxxxxxx>
---
 drivers/staging/greybus/loopback.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c
index 2471448ba42a..c88ef3e894fa 100644
--- a/drivers/staging/greybus/loopback.c
+++ b/drivers/staging/greybus/loopback.c
@@ -162,10 +162,12 @@ static ssize_t name##_avg_show(struct device *dev,		\
 }									\
 static DEVICE_ATTR_RO(name##_avg)
 
-#define gb_loopback_stats_attrs(field)				\
-	gb_loopback_ro_stats_attr(field, min, u);		\
-	gb_loopback_ro_stats_attr(field, max, u);		\
-	gb_loopback_ro_avg_attr(field)
+#define gb_loopback_stats_attrs(field)					\
+	do {								\
+		gb_loopback_ro_stats_attr(field, min, u);		\
+		gb_loopback_ro_stats_attr(field, max, u);		\
+		gb_loopback_ro_avg_attr(field);				\
+	} while (0)
 
 #define gb_loopback_attr(field, type)					\
 static ssize_t field##_show(struct device *dev,				\
-- 
2.31.1