talloc: change talloc destructor signature

Change talloc destructor so that they can never signal failure, and
don't return a status code. This makes our talloc copy even more
incompatible to upstream talloc, but on the other hand this is
preparation for getting rid of talloc entirely.

(The talloc replacement in the next commit won't allow the talloc_free
equivalent to fail, and the destructor return value would be useless.
But I don't want to change any mpv code either; the idea is that the
talloc replacement commit can be reverted for some time in order to
test whether the talloc replacement introduced a regression.)

1 files changed, 1 insertions, 2 deletions

diff --git a/video/sws_utils.c b/video/sws_utils.c
index bc9c408b3e..c90efe020c 100644
--- a/video/sws_utils.c
+++ b/video/sws_utils.c
@@ -150,13 +150,12 @@ static bool cache_valid(struct mp_sws_context *ctx)
            ctx->saturation == old->saturation;
 }
 
-static int free_mp_sws(void *p)
+static void free_mp_sws(void *p)
 {
     struct mp_sws_context *ctx = p;
     sws_freeContext(ctx->sws);
     sws_freeFilter(ctx->src_filter);
     sws_freeFilter(ctx->dst_filter);
-    return 0;
 }
 
 // You're supposed to set your scaling parameters on the returned context.