[PATCH v12 16/17] xl: main_blockdetach don't call destroy if remove succeeds

[Roger Pau Monne <roger.pau@citrix.com>]

xl was calling libxl_device_disk_destroy after a successful call to
libxl_device_disk_remove, which leads to an error.

Changes since v10:

 * Return error if libxl_device_disk_remove fails.

 * Call libxl_device_disk_dispose unconditionally.

Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
---
 tools/libxl/xl_cmdimpl.c |   11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index 4028f54..6df1fbd 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -5399,7 +5399,7 @@ int main_blocklist(int argc, char **argv)
 
 int main_blockdetach(int argc, char **argv)
 {
-    int opt;
+    int opt, rc = 0;
     libxl_device_disk disk;
 
     if ((opt = def_getopt(argc, argv, "", "block-detach", 2)) != -1)
@@ -5413,11 +5413,12 @@ int main_blockdetach(int argc, char **argv)
         fprintf(stderr, "Error: Device %s not connected.\n", argv[optind+1]);
         return 1;
     }
-    if (libxl_device_disk_remove(ctx, domid, &disk, 0)) {
+    rc = libxl_device_disk_remove(ctx, domid, &disk, 0);
+    if (rc) {
         fprintf(stderr, "libxl_device_disk_remove failed.\n");
-    } else
-        libxl_device_disk_destroy(ctx, domid, &disk, 0);
-    return 0;
+    }
+    libxl_device_disk_dispose(&disk);
+    return rc;
 }
 
 static char *uptime_to_string(unsigned long time, int short_mode)
-- 
1.7.7.5 (Apple Git-26)