diff options
| -rw-r--r-- | qga/vss-win32/requester.cpp | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/qga/vss-win32/requester.cpp b/qga/vss-win32/requester.cpp index 4401d55e3a..bc260abb96 100644 --- a/qga/vss-win32/requester.cpp +++ b/qga/vss-win32/requester.cpp @@ -347,7 +347,12 @@ void requester_freeze(int *num_vols, void *mountpoints, ErrorSet *errset) goto out; } - assert(pCreateVssBackupComponents != NULL); + if (!pCreateVssBackupComponents) { + err_set(errset, (HRESULT)ERROR_PROC_NOT_FOUND, + "CreateVssBackupComponents proc address absent. Did you call requester_init()?"); + goto out; + } + hr = pCreateVssBackupComponents(&vss_ctx.pVssbc); if (FAILED(hr)) { err_set(errset, hr, "failed to create VSS backup components"); @@ -579,8 +584,16 @@ void requester_thaw(int *num_vols, void *mountpints, ErrorSet *errset) /* Tell the provider that the snapshot is finished. */ SetEvent(vss_ctx.hEventThaw); - assert(vss_ctx.pVssbc); - assert(vss_ctx.pAsyncSnapshot); + if (!vss_ctx.pVssbc) { + err_set(errset, (HRESULT)VSS_E_BAD_STATE, + "CreateVssBackupComponents is missing. Did you freeze the volumes?"); + return; + } + if (!vss_ctx.pAsyncSnapshot) { + err_set(errset, (HRESULT)VSS_E_BAD_STATE, + "AsyncSnapshot set is missing. Did you freeze the volumes?"); + return; + } HRESULT hr = WaitForAsync(vss_ctx.pAsyncSnapshot); switch (hr) { |