Vincent Povirk : twain_32: Notify data sources of their assigned Id.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 8a118c2e0f5f42836e58f0ca6849d9d57ff40d50
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=8a118c2e0f5f42836e58f0ca6849d9d57ff40d50

Author: Vincent Povirk <vincent at codeweavers.com>
Date:   Fri Oct 20 14:16:25 2017 -0500

twain_32: Notify data sources of their assigned Id.

Signed-off-by: Vincent Povirk <vincent at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/twain_32/dsm_ctrl.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/twain_32/dsm_ctrl.c b/dlls/twain_32/dsm_ctrl.c
index 9d67dfb..b20d55c 100644
--- a/dlls/twain_32/dsm_ctrl.c
+++ b/dlls/twain_32/dsm_ctrl.c
@@ -242,13 +242,14 @@ TW_UINT16 TWAIN_OpenDS (pTW_IDENTITY pOrigin, TW_MEMREF pData)
 	}
 	newSource->hmod = hmod; 
 	newSource->dsEntry = (DSENTRYPROC)GetProcAddress(hmod, "DS_Entry"); 
+	/* Assign id for the opened data source */
+	pIdentity->Id = DSM_sourceId ++;
 	if (TWRC_SUCCESS != newSource->dsEntry (pOrigin, DG_CONTROL, DAT_IDENTITY, MSG_OPENDS, pIdentity)) {
 		DSM_twCC = TWCC_OPERATIONERROR;
                 HeapFree(GetProcessHeap(), 0, newSource);
+                DSM_sourceId--;
 		return TWRC_FAILURE;
 	}
-	/* Assign name and id for the opened data source */
-	pIdentity->Id = DSM_sourceId ++;
 	/* add the data source to an internal active source list */
 	newSource->next = activeSources;
 	newSource->identity.Id = pIdentity->Id;