From: Karel Zak <kzak@redhat.com>
Date: Thu, 17 Jun 2021 11:26:50 +0000 (+0200)
Subject: mkfs.cramfs: add comment to explain readlink() use
X-Git-Tag: v2.38-rc1~444
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2384fa6e4d086656ea7ae890d2ac2bdce08ca0e6;p=thirdparty%2Futil-linux.git

mkfs.cramfs: add comment to explain readlink() use

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

diff --git a/disk-utils/mkfs.cramfs.c b/disk-utils/mkfs.cramfs.c
index 1d0d17bf1d..1fcb927782 100644
--- a/disk-utils/mkfs.cramfs.c
+++ b/disk-utils/mkfs.cramfs.c
@@ -157,6 +157,8 @@ do_mmap(char *path, unsigned int size, unsigned int mode){
 		return NULL;
 
 	if (S_ISLNK(mode)) {
+		/* The link buffer is unnecessary to terminate by null as it's
+		 * always used as buffer rather than a string */
 		start = xmalloc(size);
 		if (readlink(path, start, size) < 0) {
 			warn(_("readlink failed: %s"), path);