From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Tue, 16 Jan 2018 14:00:39 +0000 (+0900)
Subject: virt: add comment that we need to use sscanf()
X-Git-Tag: v237~95^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=47dbb99ad7bb2e7d06c712d9f60e767f9b12a457;p=platform%2Fupstream%2Fsystemd.git

virt: add comment that we need to use sscanf()

Follow-up for 13e0f9fe8334859ee86f4ff725374d1d83f5baf7.
See PR #7890 and comment in PR #7581.
---

diff --git a/src/basic/virt.c b/src/basic/virt.c
index 9b6abf9..f4796b5 100644
--- a/src/basic/virt.c
+++ b/src/basic/virt.c
@@ -222,6 +222,8 @@ static int detect_vm_xen_dom0(void) {
         if (r == 0) {
                 unsigned long features;
 
+                /* Here, we need to use sscanf() instead of safe_atoul()
+                 * as the string lacks the leading "0x". */
                 r = sscanf(domcap, "%lx", &features);
                 if (r == 1) {
                         r = !!(features & (1U << XENFEAT_dom0));