[PATCH v2 08/19] commands: stat: remove code duplication for type info

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

stat prints a line with partitioning/type info for cdevs, but not all
cdevs have these, so we want to skip printing when it's empty.
Instead of duplicating the check, just utilize printf returning the
number of characters written.

Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
v1 -> v2:
  - Add Marco's Reviewed-by
---
 fs/fs.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/fs/fs.c b/fs/fs.c
index 68e6bf5735f0..82d6c98ffe86 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -69,6 +69,8 @@ EXPORT_SYMBOL(mkmodestr);
 
 void cdev_print(const struct cdev *cdev)
 {
+	int nbytes;
+
 	if (cdev->dev || cdev->master || cdev->partname) {
 		printf("Origin: %s", dev_name(cdev->dev) ?: "None");
 		if (cdev->master)
@@ -96,15 +98,17 @@ void cdev_print(const struct cdev *cdev)
 	}
 	printf("\n");
 
-	if (cdev->filetype || cdev->dos_partition_type || *cdev->uuid) {
-		if (cdev->filetype)
-			printf("Filetype: %s\t", file_type_to_string(cdev->filetype));
-		if (cdev->dos_partition_type)
-			printf("DOS parttype: 0x%02x\t", cdev->dos_partition_type);
-		if (*cdev->uuid)
-			printf("UUID: %s", cdev->uuid);
+	nbytes = 0;
+
+	if (cdev->filetype)
+		nbytes += printf("Filetype: %s\t", file_type_to_string(cdev->filetype));
+	if (cdev->dos_partition_type)
+		nbytes += printf("DOS parttype: 0x%02x\t", cdev->dos_partition_type);
+	if (*cdev->uuid)
+		nbytes += printf("UUID: %s", cdev->uuid);
+
+	if (nbytes)
 		printf("\n");
-	}
 }
 EXPORT_SYMBOL(cdev_print);
 
-- 
2.39.2