s390-tools/s390-tools-sles15sp3-libutil-Compare-proc-entries-to-vfstype.patch

From 8ec47052397a868c0764900db69fda4a892bd512 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20H=C3=B6ppner?= <hoeppner@linux.ibm.com>
Date: Fri, 6 Nov 2020 18:47:07 +0100
Subject: [PATCH] libutil: Compare proc entries to vfstype
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Modern systems have systemd manage system mount points like sysfs which
specify 'sysfs' as a keyword for the device as there is no device
associated with this special filesystem. However, any arbitrary string
could be specified here and the determination of the sysfs mount point
would fail in such a case.
To make sure that the mount point of the sysfs is still found when
mounted with a device keyword specified other than 'sysfs', check for
the filesystem type instead, which is more specific.

Fixes: https://github.com/ibm-s390-tools/s390-tools/issues/91
Suggested-by: Mark Post <mpost@suse.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
---
 libutil/util_proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libutil/util_proc.c b/libutil/util_proc.c
index 080f831..9ac4381 100644
--- a/libutil/util_proc.c
+++ b/libutil/util_proc.c
@@ -460,7 +460,7 @@ int util_proc_mnt_get_entry(const char *file_name, const char *spec,
 		rc = scan_mnt_entry(&file, entry);
 		if (rc)
 			goto out_free;
-		if (!strcmp(entry->spec, spec)) {
+		if (!strcmp(entry->vfstype, spec)) {
 			rc = 0;
 			goto out_free;
 		}
-- 
2.26.2