From: QRPp <awesome.walrus+github@gmail.com>
Date: Mon, 1 Sep 2025 20:33:57 +0000 (+0100)
Subject: Fix --monitor --scan with relative ARRAY devnames
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=574b11602fb210c5b3e5f6fe460ab21e7c7d998c;p=thirdparty%2Fmdadm.git

Fix --monitor --scan with relative ARRAY devnames

Since commit e702f392959d ("Mdmonitor: Fix segfault"), when configuration
files used non-absolute ARRAY device names, commands like `mdadm --monitor
--scan` failed with `mdadm: error opening devname: No such file or
directory` unless run from the `/dev/md` directory.

Signed-off-by: QRPp <awesome.walrus+github@gmail.com>
---

diff --git a/mdmonitor.c b/mdmonitor.c
index ea35d98e..22b0a818 100644
--- a/mdmonitor.c
+++ b/mdmonitor.c
@@ -254,12 +254,14 @@ int Monitor(struct mddev_dev *devlist,
 				continue;
 			if (is_devname_ignore(mdlist->devname) == true)
 				continue;
-			if (!is_mddev(mdlist->devname))
-				continue;
 
 			st = xcalloc(1, sizeof *st);
 			snprintf(st->devname, MD_NAME_MAX + sizeof(DEV_MD_DIR), DEV_MD_DIR "%s",
 				 basename(mdlist->devname));
+			if (!is_mddev(st->devname)) {
+				free(st);
+				continue;
+			}
 			st->next = statelist;
 			st->devnm[0] = 0;
 			st->percent = RESYNC_UNKNOWN;