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-rw-r--r--src/basic/virt.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/basic/virt.c b/src/basic/virt.c
index 19b6318e3d..79387007f0 100644
--- a/src/basic/virt.c
+++ b/src/basic/virt.c
@@ -201,6 +201,8 @@ static int detect_vm_xen(void) {
r = read_one_line_file("/proc/xen/capabilities", &domcap);
if (r == -ENOENT)
return VIRTUALIZATION_NONE;
+ if (r < 0)
+ return r;
i = domcap;
while ((cap = strsep(&i, ",")))