commit a14d40939de7d38029f99c10bc237bb68e83d119
Author: Jie Liu <jeff.liu@oracle.com>
Date:   Wed Jul 16 13:54:47 2014 +1000

    quota: fix NULL pointer dereference in report_f
    
    Run xfs_quota report against an invalid XFS path without desired quota
    limitation is enabled will hit SEGSEGV as fs_path is uninitialized, e.g.
    
    # xfs_quota -xc 'report -up' /invalid_path
    xfs_quota: cannot setup path for mount /invalid_path: No such file or directory
    Segmentation fault (core dumped)
    
    (gdb) r -xc 'report -up' /invalid_path
    xfs_quota: cannot setup path for mount /invalid_path: No such file or directory
    
    Program received signal SIGSEGV, Segmentation fault.
    0x0000000000408b4d in report_f (argc=2, argv=0x105ea70) at report.c:627
    627			else if (fs_path->fs_flags & FS_MOUNT_POINT)
    
    This patch fixes report_f() to only do report if the fs_path is initialized.
    
    Signed-off-by: Jie Liu <jeff.liu@oracle.com>
    Reviewed-by: Eric Sandeen <sandeen@redhat.com>
    Reviewed-by: Christoph Hellwig <hch@lst.de>
    Signed-off-by: Dave Chinner <david@fromorbit.com>

diff --git a/quota/report.c b/quota/report.c
index 70894a2..8e3316e 100644
--- a/quota/report.c
+++ b/quota/report.c
@@ -624,7 +624,7 @@ report_f(
 		if (flags & ALL_MOUNTS_FLAG)
 			report_any_type(fp, form, type, NULL,
 					lower, upper, flags);
-		else if (fs_path->fs_flags & FS_MOUNT_POINT)
+		else if (fs_path && (fs_path->fs_flags & FS_MOUNT_POINT))
 			report_any_type(fp, form, type, fs_path->fs_dir,
 					lower, upper, flags);
 	} else while (argc > optind) {