[Xen-devel] [PATCH 3 of 5] libxl: Allocate memory for strings in libxl_device_disk

[Marek Marczykowski <marmarek@xxxxxxxxxxxx>]

# HG changeset patch
# User Marek Marczykowski <marmarek@xxxxxxxxxxxx>
# Date 1306962954 -7200
# Node ID aa6e0521bb3853b0e1d90e870220568020929cf5
# Parent  8080606fb87a751f7cde4c6a08e3945a21d397b0
libxl: Allocate memory for strings in libxl_device_disk

Memory for strings in libxl_device_disk must be allocated from outside of
libxl__gc to not be freed at the end of function (by libxl__free_all).

Fixes xl block-detach

Signed-off-by: Marek Marczykowski <marmarek@xxxxxxxxxxxx>

diff --git a/tools/libxl/libxl_utils.c b/tools/libxl/libxl_utils.c
--- a/tools/libxl/libxl_utils.c
+++ b/tools/libxl/libxl_utils.c
@@ -551,10 +551,10 @@ int libxl_devid_to_device_disk(libxl_ctx
     disk->backend_domid = strtoul(val, NULL, 10);
     disk->domid = domid;
     be_path = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/backend", 
diskpath));
-    disk->pdev_path = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, 
"%s/params", be_path));
+    disk->pdev_path = xs_read(ctx->xsh, XBT_NULL, libxl__sprintf(&gc, 
"%s/params", be_path), NULL);
     val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/type", 
be_path));
     libxl_string_to_backend(ctx, val, &(disk->backend));
-    disk->vdev = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/dev", 
be_path));
+    disk->vdev = xs_read(ctx->xsh, XBT_NULL, libxl__sprintf(&gc, "%s/dev", 
be_path), NULL);
     val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/removable", 
be_path));
     disk->unpluggable = !strcmp(val, "1");
     val = libxl__xs_read(&gc, XBT_NULL, libxl__sprintf(&gc, "%s/mode", 
be_path));



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