udev: fix codesonar warnings

[thirdparty/systemd.git] / src / udev / udevadm-info.c

diff --git a/src/udev/udevadm-info.c b/src/udev/udevadm-info.c
index 7eec84abd5d8e2485f36a8e0a7e7ccc157af8cf1..ae6d8caf54e02c39c4b5f4245b5523cc9713eb97 100644 (file)
--- a/src/udev/udevadm-info.c
+++ b/src/udev/udevadm-info.c
@@ -100,7 +100,7 @@ static int print_all_attributes(sd_device *device, bool is_parent) {
 
                 /* skip nonprintable attributes */
                 len = strlen(value);
-                while (len > 0 && isprint(value[len-1]))
+                while (len > 0 && isprint((unsigned char) value[len-1]))
                         len--;
                 if (len > 0)
                         continue;