Rémi Bernon : winegstreamer: Avoid releasing wg_allocator memory samples twice.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 1b5ddc1e2f9e4dc4bbda2318e8e13adc6067ba52
URL:    https://gitlab.winehq.org/wine/wine/-/commit/1b5ddc1e2f9e4dc4bbda2318e8e13ad...

Author: Rémi Bernon 
Date:   Sun Jun 25 11:17:12 2023 +0200

winegstreamer: Avoid releasing wg_allocator memory samples twice.

When the sample size is too small, we were releasing it from the memory,
but kept the next_sample pointer set. Later, when the transform removes
the sample from the allocator, its refcount was decremented one more
time, effectively leaking the sample.

---

dlls/winegstreamer/wg_allocator.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/dlls/winegstreamer/wg_allocator.c b/dlls/winegstreamer/wg_allocator.c
index 5cc2a6fcf12..a46a3de142a 100644
--- a/dlls/winegstreamer/wg_allocator.c
+++ b/dlls/winegstreamer/wg_allocator.c
@@ -196,9 +196,9 @@ static GstMemory *wg_allocator_alloc(GstAllocator *gst_allocator, gsize size,
     pthread_mutex_lock(&allocator->mutex);

memory->sample = allocator->next_sample;
-    if (memory->sample && memory->sample->max_size >= size)
-        allocator->next_sample = NULL;
-    else
+    allocator->next_sample = NULL;
+
+    if (memory->sample && memory->sample->max_size < size)
         release_memory_sample(allocator, memory, true);

list_add_tail(&allocator->memory_list, &memory->entry);