Bruno Jesus : msacm32: Catch NULL parameters in acmFormatSuggest().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d08197f92aab2c52f257488d134f3bfc3a1a2ff6
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=d08197f92aab2c52f257488d134f3bfc3a1a2ff6

Author: Bruno Jesus <00cpxxx at gmail.com>
Date:   Wed Sep  9 12:10:32 2015 +0800

msacm32: Catch NULL parameters in acmFormatSuggest().

---

 dlls/msacm32/format.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/msacm32/format.c b/dlls/msacm32/format.c
index f7f0fa4..1ab05ae 100644
--- a/dlls/msacm32/format.c
+++ b/dlls/msacm32/format.c
@@ -676,6 +676,9 @@ MMRESULT WINAPI acmFormatSuggest(HACMDRIVER had, PWAVEFORMATEX pwfxSrc,
     TRACE("(%p, %p, %p, %d, %d)\n",
 	  had, pwfxSrc, pwfxDst, cbwfxDst, fdwSuggest);
 
+    if (!pwfxSrc || !pwfxDst)
+        return MMSYSERR_INVALPARAM;
+
     if (fdwSuggest & ~(ACM_FORMATSUGGESTF_NCHANNELS|ACM_FORMATSUGGESTF_NSAMPLESPERSEC|
 		       ACM_FORMATSUGGESTF_WBITSPERSAMPLE|ACM_FORMATSUGGESTF_WFORMATTAG))
 	return MMSYSERR_INVALFLAG;