[PATCH v5 2/2] win32u: Avoid leaking previous buffer in get_buffer_space().

[Paul Gofman]

From: Paul Gofman

---
 dlls/win32u/message.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/dlls/win32u/message.c b/dlls/win32u/message.c
index 3a17c4689ff..8f12acfd6d1 100644
--- a/dlls/win32u/message.c
+++ b/dlls/win32u/message.c
@@ -473,7 +473,14 @@ static inline void *get_buffer_space( void **buffer, size_t size, size_t *buffer
 {
     if (*buffer_size < size)
     {
-        *buffer = malloc( size );
+        void *new;
+
+        if (!(new = realloc( *buffer, size )))
+        {
+            ERR( "Failed to allocate %zu bytes.\n", size );
+            return NULL;
+        }
+        *buffer = new;
         *buffer_size = size;
     }
     return *buffer;