master - libdm: fix errpath for control node creation

[Zdenek Kabelac]

Gitweb:        https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=0e42b31dc3be45c29abd90...
Commit:        0e42b31dc3be45c29abd90369c02c077d1763ff0
Parent:        df5c2964269895b6f5ce16dbdb70edd57c5aa67d
Author:        Zdenek Kabelac 
AuthorDate:    Tue Aug 22 10:19:40 2017 +0200
Committer:     Zdenek Kabelac 
CommitterDate: Tue Aug 22 10:23:29 2017 +0200

libdm: fix errpath for control node creation

When control node failure happens, umask was not restored.
Fix it by using common exit path.
---
 WHATS_NEW_DM              |    1 +
 libdm/ioctl/libdm-iface.c |    5 ++---
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/WHATS_NEW_DM b/WHATS_NEW_DM
index d3cc78c..766eb20 100644
--- a/WHATS_NEW_DM
+++ b/WHATS_NEW_DM
@@ -1,5 +1,6 @@
 Version 1.02.143 - 
 =================================
+  Restore umask when creation of node fails.
   Add --concise to dmsetup create for many devices with tables in one command.
   Accept minor number without major in library when it knows dm major number.
   Introduce single-line concise table output format: dmsetup table --concise
diff --git a/libdm/ioctl/libdm-iface.c b/libdm/ioctl/libdm-iface.c
index e32af80..63d305b 100644
--- a/libdm/ioctl/libdm-iface.c
+++ b/libdm/ioctl/libdm-iface.c
@@ -293,13 +293,12 @@ static int _create_control(const char *control, uint32_t major, uint32_t minor)
    if (mknod(control, S_IFCHR | S_IRUSR | S_IWUSR,
    	  MKDEV((dev_t)major, (dev_t)minor)) < 0)  {
    	log_sys_error("mknod", control);
-		(void) dm_prepare_selinux_context(NULL, 0);
-		return 0;
+		ret = 0;
    }
    umask(old_umask);
    (void) dm_prepare_selinux_context(NULL, 0);

-	return 1;
+	return ret;
 }
 #endif