lsblk: use ssize_t for readlink() return code

Signed-off-by: Karel Zak <kzak@redhat.com>

misc-utils/lsblk.c

@@ -861,7 +861,7 @@ static int process_one_device(char *devname)
 		/*
 		 * Parititioned, read sysfs name of the device
 		 */
-		size_t len;
+		ssize_t len;
 		char path[PATH_MAX], *diskname, *name;
 
 		snprintf(path, sizeof(path), "/sys/dev/block/%d:%d",

misc-utils/namei.c

@@ -184,7 +184,7 @@ static void
 readlink_to_namei(struct namei *nm, const char *path)
 {
 	char sym[PATH_MAX];
-	size_t sz;
+	ssize_t sz;
 
 	sz = readlink(path, sym, sizeof(sym));
 	if (sz < 1)