Michael Stefaniuc : msi: Unlock msi_custom_action_c on the error paths.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: c2add8a030b63d79f94d516d2dbee9fb09b9c09c
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=c2add8a030b63d79f94d516d2dbee9fb09b9c09c

Author: Michael Stefaniuc <mstefani at winehq.org>
Date:   Thu Aug 16 22:31:22 2018 +0200

msi: Unlock msi_custom_action_c on the error paths.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45483
Signed-off-by: Michael Stefaniuc <mstefani at winehq.org>
Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
Signed-off-by: Hans Leidekker <hans at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/msi/custom.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dlls/msi/custom.c b/dlls/msi/custom.c
index 950681e..cd37a56 100644
--- a/dlls/msi/custom.c
+++ b/dlls/msi/custom.c
@@ -678,11 +678,13 @@ static DWORD WINAPI custom_client_thread(void *arg)
         size != sizeof(info->guid))
     {
         ERR("Failed to write to custom action client pipe: %u\n", GetLastError());
+        LeaveCriticalSection(&msi_custom_action_cs);
         return GetLastError();
     }
     if (!ReadFile(pipe, &thread64, sizeof(thread64), &size, NULL) || size != sizeof(thread64))
     {
         ERR("Failed to read from custom action client pipe: %u\n", GetLastError());
+        LeaveCriticalSection(&msi_custom_action_cs);
         return GetLastError();
     }