[PATCH 2/5] mmdevapi: mmdevapi: Reject wave formats with zero block alignment.

[Giovanni Mascellani]

From: Giovanni Mascellani <[e-mail]>

The ALSA driver uses it as a divisor.
---
 dlls/mmdevapi/client.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/mmdevapi/client.c b/dlls/mmdevapi/client.c
index beb2c12a3df..6eac6b8714a 100644
--- a/dlls/mmdevapi/client.c
+++ b/dlls/mmdevapi/client.c
@@ -388,7 +388,7 @@ static HRESULT validate_wfx(const WAVEFORMATEX *fmt, AUDCLNT_SHAREMODE share_mod
     if (FAILED(ret))
         return ret;
 
-    if (fmt->nSamplesPerSec == 0)
+    if (fmt->nSamplesPerSec == 0 || fmt->nBlockAlign == 0)
         ret = E_INVALIDARG;
 
     switch (fmt->wFormatTag) {
-- 
GitLab


https://gitlab.winehq.org/wine/wine/-/merge_requests/9749