Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20160121' into staging

Xen 2016/01/21

# gpg: Signature made Thu 21 Jan 2016 16:58:50 GMT using RSA key ID 70E1AE90
# gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"

* remotes/sstabellini/tags/xen-20160121:
  Xen PCI passthru: convert to realize()
  Add Error **errp for xen_pt_config_init()
  Add Error **errp for xen_pt_setup_vga()
  Add Error **errp for xen_host_pci_device_get()
  Xen: use qemu_strtoul instead of strtol
  Change xen_host_pci_sysfs_path() to return void
  xen-pvdevice: convert to realize()
  xen-hvm: Clean up xen_ram_alloc() error handling
  xen-hvm: Clean up xen_hvm_init() error handling
  xenfb.c: avoid expensive loops when prod <= out_cons
  MAINTAINERS: update Xen files

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/exec.c b/exec.c
index 5a1b208911..7115403e05 100644
--- a/exec.c
+++ b/exec.c
@@ -1510,6 +1510,7 @@ static ram_addr_t ram_block_add(RAMBlock *new_block, Error **errp)
     RAMBlock *block;
     RAMBlock *last_block = NULL;
     ram_addr_t old_ram_size, new_ram_size;
+    Error *err = NULL;
 
     old_ram_size = last_ram_offset() >> TARGET_PAGE_BITS;
 
@@ -1519,7 +1520,12 @@ static ram_addr_t ram_block_add(RAMBlock *new_block, Error **errp)
     if (!new_block->host) {
         if (xen_enabled()) {
             xen_ram_alloc(new_block->offset, new_block->max_length,
-                          new_block->mr);
+                          new_block->mr, &err);
+            if (err) {
+                error_propagate(errp, err);
+                qemu_mutex_unlock_ramlist();
+                return -1;
+            }
         } else {
             new_block->host = phys_mem_alloc(new_block->max_length,
                                              &new_block->mr->align);