[PATCH v4 0/3] MR3105: Add a few additional nullchecks (Coverity)

[Fabian Maurer (＠DarkShadow44)]

--
  v4: mmdevapi: Add nullcheck for parameter that can be null (Coverity)
      winealsa: Remove superflous check
      wineoss: Remove superflous check

https://gitlab.winehq.org/wine/wine/-/merge_requests/3105

[PATCH v4 1/3] wineoss: Remove superflous check

[Fabian Maurer]

From: Fabian Maurer

---
 dlls/wineoss.drv/oss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/wineoss.drv/oss.c b/dlls/wineoss.drv/oss.c
index 097e048d03b..c7e79e13b22 100644
--- a/dlls/wineoss.drv/oss.c
+++ b/dlls/wineoss.drv/oss.c
@@ -551,7 +551,7 @@ static HRESULT setup_oss_device(AUDCLNT_SHAREMODE share, int fd,
     if(ret == S_FALSE && !out)
         ret = AUDCLNT_E_UNSUPPORTED_FORMAT;

-    if(ret == S_FALSE && out){
+    if(ret == S_FALSE){
         closest->Format.nBlockAlign =
             closest->Format.nChannels * closest->Format.wBitsPerSample / 8;
         closest->Format.nAvgBytesPerSec =

[PATCH v4 2/3] winealsa: Remove superflous check

[Fabian Maurer]

From: Fabian Maurer

---
 dlls/winealsa.drv/alsa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/winealsa.drv/alsa.c b/dlls/winealsa.drv/alsa.c
index 17737012579..9cdbf13f9be 100644
--- a/dlls/winealsa.drv/alsa.c
+++ b/dlls/winealsa.drv/alsa.c
@@ -2014,7 +2014,7 @@ exit:
     if(params->result == S_FALSE && !params->fmt_out)
         params->result = AUDCLNT_E_UNSUPPORTED_FORMAT;

-    if(params->result == S_FALSE && params->fmt_out) {
+    if(params->result == S_FALSE) {
         closest->Format.nBlockAlign = closest->Format.nChannels * closest->Format.wBitsPerSample / 8;
         closest->Format.nAvgBytesPerSec = closest->Format.nBlockAlign * closest->Format.nSamplesPerSec;
         if(closest->Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE)

[PATCH v4 3/3] mmdevapi: Add nullcheck for parameter that can be null (Coverity)

[Fabian Maurer]

From: Fabian Maurer

"out" got checked for null earlier, so we should do it here as well
Also added a test that crashes otherwise

Signed-off-by: Fabian Maurer 
---
 dlls/mmdevapi/client.c       |  3 +++
 dlls/mmdevapi/tests/render.c | 16 ++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/dlls/mmdevapi/client.c b/dlls/mmdevapi/client.c
index 11a0a572d98..ef4dcedb68b 100644
--- a/dlls/mmdevapi/client.c
+++ b/dlls/mmdevapi/client.c
@@ -650,6 +650,9 @@ static HRESULT WINAPI client_IsFormatSupported(IAudioClient3 *iface, AUDCLNT_SHA

WINE_UNIX_CALL(is_format_supported, &params);

+    if (params.result == S_FALSE && !out)
+        return AUDCLNT_E_UNSUPPORTED_FORMAT;
+
     if (params.result == S_FALSE)
         *out = &params.fmt_out->Format;
     else
diff --git a/dlls/mmdevapi/tests/render.c b/dlls/mmdevapi/tests/render.c
index 8e000f03acb..3e24ac45944 100644
--- a/dlls/mmdevapi/tests/render.c
+++ b/dlls/mmdevapi/tests/render.c
@@ -139,11 +139,23 @@ static void test_audioclient(void)
     HRESULT hr;
     ULONG ref;
     WAVEFORMATEX *pwfx, *pwfx2;
+    WAVEFORMATEXTENSIBLE format_float_error;
     REFERENCE_TIME t1, t2;
     HANDLE handle;
     BOOL offload_capable;
     AudioClientProperties client_props;

+    format_float_error.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE);
+    format_float_error.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
+    format_float_error.Format.nAvgBytesPerSec = 384000;
+    format_float_error.Format.nBlockAlign = 8;
+    format_float_error.Format.nChannels = 2;
+    format_float_error.Format.nSamplesPerSec = 48000;
+    format_float_error.Format.wBitsPerSample = 32;
+    format_float_error.Samples.wValidBitsPerSample = 4;
+    format_float_error.dwChannelMask = 3;
+    format_float_error.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
+
     hr = IMMDevice_Activate(dev, &IID_IAudioClient3, CLSCTX_INPROC_SERVER,
             NULL, (void**)&ac3);
     ok(hr == S_OK ||
@@ -258,6 +270,10 @@ static void test_audioclient(void)
            "IsFormatSupported(Exclusive) call returns %08lx\n", hr);
         hexcl = hr;

+        hr = IAudioClient_IsFormatSupported(ac, AUDCLNT_SHAREMODE_EXCLUSIVE, &format_float_error.Format, NULL);
+        ok(hr == S_OK || hr == AUDCLNT_E_UNSUPPORTED_FORMAT || hr == AUDCLNT_E_EXCLUSIVE_MODE_NOT_ALLOWED,
+                  "IsFormatSupported(Exclusive) call returns %08lx\n", hr);
+
         pwfx2 = (WAVEFORMATEX*)0xDEADF00D;
         hr = IAudioClient_IsFormatSupported(ac, AUDCLNT_SHAREMODE_EXCLUSIVE, pwfx, &pwfx2);
         ok(hr == hexcl, "IsFormatSupported(Exclusive) call returns %08lx\n", hr);

[PATCH v4 3/3] mmdevapi: Add nullcheck for parameter that can be null (Coverity)

[Marvin]

Hi,

It looks like your patch introduced the new failures shown below.
Please investigate and fix them before resubmitting your patch.
If they are not new, fixing them anyway would help a lot. Otherwise
please ask for the known failures list to be updated.

The tests also ran into some preexisting test failures. If you know how
to fix them that would be helpful. See the TestBot job for the details:

The full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=135286

Your paranoid android.

=== w1064v1507 (32 bit report) ===

mmdevapi:
render.c:1358: Test failed: GetBuffer large (20671) at iteration 3
render.c:1358: Test failed: GetBuffer large (20671) at iteration 5

=== w10pro64 (32 bit report) ===

mmdevapi:
render.c:1358: Test failed: GetBuffer large (22500) at iteration 7
render.c:1358: Test failed: GetBuffer large (22500) at iteration 8
render.c:1358: Test failed: GetBuffer large (22500) at iteration 6

=== w1064v1507 (64 bit report) ===

mmdevapi:
render.c:1358: Test failed: GetBuffer large (20671) at iteration 2

=== w1064v1809 (64 bit report) ===

mmdevapi:
render.c:1358: Test failed: GetBuffer large (20671) at iteration 8

=== w1064_2qxl (64 bit report) ===

mmdevapi:
render.c:1358: Test failed: GetBuffer large (22500) at iteration 8

=== w1064_tsign (64 bit report) ===

mmdevapi:
render.c:1358: Test failed: GetBuffer large (22500) at iteration 5

=== w10pro64 (64 bit report) ===

mmdevapi:
render.c:1358: Test failed: GetBuffer large (22500) at iteration 2
render.c:1358: Test failed: GetBuffer large (22500) at iteration 4

[Fabian Maurer (＠DarkShadow44)]

On Wed Jul 26 06:28:08 2023 +0000, Huw Davies wrote:
> These failures look new.

Adjusted the code. It is a bit confusing, since the testbot and my machine behave differently... I had changes that failed only locally, and changes that seem to have only failed on the testbot. I hope this iteration one works everywhere.

[Fabian Maurer (＠DarkShadow44)]

On Wed Jul 26 18:03:29 2023 +0000, **** wrote:
> Marvin replied on the mailing list:
> Hi,
> It looks like your patch introduced the new failures shown below.
> Please investigate and fix them before resubmitting your patch.
> If they are not new, fixing them anyway would help a lot. Otherwise
> please ask for the known failures list to be updated.
> The tests also ran into some preexisting test failures. If you know how
> to fix them that would be helpful. See the TestBot job for the details:
> The full results can be found at:
> https://testbot.winehq.org/JobDetails.pl?Key=135286
> Your paranoid android.
> === w1064v1507 (32 bit report) ===
> mmdevapi:
> render.c:1358: Test failed: GetBuffer large (20671) at iteration 3
> render.c:1358: Test failed: GetBuffer large (20671) at iteration 5
> === w10pro64 (32 bit report) ===
> mmdevapi:
> render.c:1358: Test failed: GetBuffer large (22500) at iteration 7
> render.c:1358: Test failed: GetBuffer large (22500) at iteration 8
> render.c:1358: Test failed: GetBuffer large (22500) at iteration 6
> === w1064v1507 (64 bit report) ===
> mmdevapi:
> render.c:1358: Test failed: GetBuffer large (20671) at iteration 2
> === w1064v1809 (64 bit report) ===
> mmdevapi:
> render.c:1358: Test failed: GetBuffer large (20671) at iteration 8
> === w1064_2qxl (64 bit report) ===
> mmdevapi:
> render.c:1358: Test failed: GetBuffer large (22500) at iteration 8
> === w1064_tsign (64 bit report) ===
> mmdevapi:
> render.c:1358: Test failed: GetBuffer large (22500) at iteration 5
> === w10pro64 (64 bit report) ===
> mmdevapi:
> render.c:1358: Test failed: GetBuffer large (22500) at iteration 2
> render.c:1358: Test failed: GetBuffer large (22500) at iteration 4

AFAIK those are just flaky, I didn't touch that part.

[Huw Davies (＠huw)]

> AFAIK those are just flaky, I didn't touch that part.

I'm not sure.  I haven't seen these before.

[Fabian Maurer (＠DarkShadow44)]

On Thu Jul 27 08:38:28 2023 +0000, Huw Davies wrote:
> > AFAIK those are just flaky, I didn't touch that part.
>
> I'm not sure.  I haven't seen these before.

You can manually upload the current master branch mmdevapi_test to the testbot, that produces the same errors. Unless I messed something up, here's the result: https://testbot.winehq.org/JobDetails.pl?Key=135283