[PATCH 01/10] libxfs: clean up xfs_da_unmount usage

["Darrick J. Wong" <djwong@xxxxxxxxxx>]

From: Darrick J. Wong <djwong@xxxxxxxxxx>

Replace the open-coded xfs_da_unmount usage in libxfs_umount and teach
libxfs_mount not to leak the dir/attr geometry structures when the mount
attempt fails.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 libxfs/init.c |   17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)


diff --git a/libxfs/init.c b/libxfs/init.c
index 1e035c48f57..f15ac48a21d 100644
--- a/libxfs/init.c
+++ b/libxfs/init.c
@@ -716,7 +716,7 @@ libxfs_mount(
 	if (error) {
 		fprintf(stderr, _("%s: data size check failed\n"), progname);
 		if (!xfs_is_debugger(mp))
-			return NULL;
+			goto out_da;
 	} else
 		libxfs_buf_relse(bp);
 
@@ -730,7 +730,7 @@ libxfs_mount(
 			fprintf(stderr, _("%s: log size checks failed\n"),
 					progname);
 			if (!xfs_is_debugger(mp))
-				return NULL;
+				goto out_da;
 		}
 		if (bp)
 			libxfs_buf_relse(bp);
@@ -741,8 +741,8 @@ libxfs_mount(
 	/* Initialize realtime fields in the mount structure */
 	if (rtmount_init(mp)) {
 		fprintf(stderr, _("%s: realtime device init failed\n"),
-			progname);
-			return NULL;
+				progname);
+			goto out_da;
 	}
 
 	/*
@@ -760,7 +760,7 @@ libxfs_mount(
 			fprintf(stderr, _("%s: read of AG %u failed\n"),
 						progname, sbp->sb_agcount);
 			if (!xfs_is_debugger(mp))
-				return NULL;
+				goto out_da;
 			fprintf(stderr, _("%s: limiting reads to AG 0\n"),
 								progname);
 			sbp->sb_agcount = 1;
@@ -778,6 +778,9 @@ libxfs_mount(
 	xfs_set_perag_data_loaded(mp);
 
 	return mp;
+out_da:
+	xfs_da_unmount(mp);
+	return NULL;
 }
 
 void
@@ -900,9 +903,7 @@ libxfs_umount(
 	if (xfs_is_perag_data_loaded(mp))
 		libxfs_free_perag(mp);
 
-	kmem_free(mp->m_attr_geo);
-	kmem_free(mp->m_dir_geo);
-
+	xfs_da_unmount(mp);
 	kmem_free(mp->m_rtdev_targp);
 	if (mp->m_logdev_targp != mp->m_ddev_targp)
 		kmem_free(mp->m_logdev_targp);