From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 21 May 2019 16:00:09 +0000 (+0200)
Subject: blockdev: filter out invalid block devices early
X-Git-Tag: v243-rc1~200^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=51f14fa11120998e2cd79c2bfcab734423d2f0ee;p=thirdparty%2Fsystemd.git

blockdev: filter out invalid block devices early
---

diff --git a/src/basic/blockdev-util.c b/src/basic/blockdev-util.c
index 5e7dc06c997..6bbb723dfe9 100644
--- a/src/basic/blockdev-util.c
+++ b/src/basic/blockdev-util.c
@@ -21,6 +21,9 @@ int block_get_whole_disk(dev_t d, dev_t *ret) {
 
         assert(ret);
 
+        if (major(d) == 0)
+                return -ENODEV;
+
         /* If it has a queue this is good enough for us */
         xsprintf_sys_block_path(p, "/queue", d);
         if (access(p, F_OK) >= 0) {