From: Andrey Borzenkov <arvidjaar@gmail.com>
To: grub-devel@gnu.org
Subject: [PATCH] return failure from grub-mount if fuse_main failed

Currently there is no way to check that mount was successful. It caused
problem with os-prober which did not try kernel mount fallback.

Return value of fuse_init is currenty unused, but still it looks wrong
to always return success. In this case it should simply be void; if it
returns value, let value be correct.

Ref: https://bugzilla.novell.com/show_bug.cgi?id=802983

Signed-off-by: Andrey Borzenkov <arvidjaar@gmail.com>

---
 util/grub-mount.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Index: grub-2.00/util/grub-mount.c
===================================================================
--- grub-2.00.orig/util/grub-mount.c
+++ grub-2.00/util/grub-mount.c
@@ -383,7 +383,8 @@ fuse_init (void)
       return grub_errno;
     }
 
-  fuse_main (fuse_argc, fuse_args, &grub_opers, NULL);
+  if (fuse_main (fuse_argc, fuse_args, &grub_opers, NULL))
+    grub_error (GRUB_ERR_UNKNOWN_FS, "fuse_main failed");
 
   for (i = 0; i < num_disks; i++)
     {
@@ -403,7 +404,7 @@ fuse_init (void)
       grub_free (loop_name);
     }
 
-  return GRUB_ERR_NONE;
+  return grub_errno;
 }
 
 static struct argp_option options[] = {