[PATCH 07/18] 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.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 fs/fs.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/fs/fs.c b/fs/fs.c
index 368458cc54f8..ba60766a065a 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