From: nobled Date: Sun, 15 Aug 2010 03:59:15 +0000 (+0000) Subject: r300g: Fix leaks in failed context creation X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1e2cd02eae9d27e48273f4a548dc51f4f838eb96;p=mesa.git r300g: Fix leaks in failed context creation This changes r300_destroy_context() so it can be called on a partially-initialized context, and uses it when r300_create_context() hits a fatal error. This makes sure r300_create_context() doesn't leak memory or neglect to call r300_update_num_contexts() when it fails. Signed-off-by: Marek Olšák --- diff --git a/src/gallium/drivers/r300/r300_context.c b/src/gallium/drivers/r300/r300_context.c index 23b654e0c8c..25b39c566cb 100644 --- a/src/gallium/drivers/r300/r300_context.c +++ b/src/gallium/drivers/r300/r300_context.c @@ -99,8 +99,10 @@ static void r300_destroy_context(struct pipe_context* context) struct r300_context* r300 = r300_context(context); struct r300_atom *atom; - util_blitter_destroy(r300->blitter); - draw_destroy(r300->draw); + if (r300->blitter) + util_blitter_destroy(r300->blitter); + if (r300->draw) + draw_destroy(r300->draw); /* Print stats, if enabled. */ if (SCREEN_DBG_ON(r300->screen, DBG_STATS)) { @@ -112,40 +114,48 @@ static void r300_destroy_context(struct pipe_context* context) } } - u_upload_destroy(r300->upload_vb); - u_upload_destroy(r300->upload_ib); + if (r300->upload_vb) + u_upload_destroy(r300->upload_vb); + if (r300->upload_ib) + u_upload_destroy(r300->upload_ib); - /* setup hyper-z mm */ - if (r300->rws->get_value(r300->rws, R300_CAN_HYPERZ)) + if (r300->zmask_mm) r300_hyperz_destroy_mm(r300); - translate_cache_destroy(r300->tran.translate_cache); + if (r300->tran.translate_cache) + translate_cache_destroy(r300->tran.translate_cache); + /* XXX: This function assumes r300->query_list was initialized */ r300_release_referenced_objects(r300); - r300->rws->cs_destroy(r300->cs); + if (r300->cs) + r300->rws->cs_destroy(r300->cs); + /* XXX: No way to tell if this was initialized or not? */ util_mempool_destroy(&r300->pool_transfers); r300_update_num_contexts(r300->screen, -1); - FREE(r300->aa_state.state); - FREE(r300->blend_color_state.state); - FREE(r300->clip_state.state); - FREE(r300->fb_state.state); - FREE(r300->gpu_flush.state); - FREE(r300->hyperz_state.state); - FREE(r300->invariant_state.state); - FREE(r300->rs_block_state.state); - FREE(r300->scissor_state.state); - FREE(r300->textures_state.state); - FREE(r300->vap_invariant_state.state); - FREE(r300->viewport_state.state); - FREE(r300->ztop_state.state); - FREE(r300->fs_constants.state); - FREE(r300->vs_constants.state); - if (!r300->screen->caps.has_tcl) { - FREE(r300->vertex_stream_state.state); + /* Free the structs allocated in r300_setup_atoms() */ + if (r300->aa_state.state) { + FREE(r300->aa_state.state); + FREE(r300->blend_color_state.state); + FREE(r300->clip_state.state); + FREE(r300->fb_state.state); + FREE(r300->gpu_flush.state); + FREE(r300->hyperz_state.state); + FREE(r300->invariant_state.state); + FREE(r300->rs_block_state.state); + FREE(r300->scissor_state.state); + FREE(r300->textures_state.state); + FREE(r300->vap_invariant_state.state); + FREE(r300->viewport_state.state); + FREE(r300->ztop_state.state); + FREE(r300->fs_constants.state); + FREE(r300->vs_constants.state); + if (r300->vertex_stream_state.state) { + FREE(r300->vertex_stream_state.state); + } } FREE(r300); } @@ -406,12 +416,16 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen, r300->context.destroy = r300_destroy_context; - r300->cs = rws->cs_create(rws); + make_empty_list(&r300->query_list); util_mempool_create(&r300->pool_transfers, sizeof(struct pipe_transfer), 64, UTIL_MEMPOOL_SINGLETHREADED); + r300->cs = rws->cs_create(rws); + if (r300->cs == NULL) + goto fail; + if (!r300screen->caps.has_tcl) { /* Create a Draw. This is used for SW TCL. */ r300->draw = draw_create(&r300->context); @@ -426,8 +440,6 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen, r300_setup_atoms(r300); - make_empty_list(&r300->query_list); - r300_init_blit_functions(r300); r300_init_flush_functions(r300); r300_init_query_functions(r300); @@ -435,6 +447,8 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen, r300_init_resource_functions(r300); r300->blitter = util_blitter_create(&r300->context); + if (r300->blitter == NULL) + goto fail; /* Render functions must be initialized after blitter. */ r300_init_render_functions(r300); @@ -450,15 +464,17 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen, PIPE_BIND_INDEX_BUFFER); if (r300->upload_ib == NULL) - goto no_upload_ib; + goto fail; r300->upload_vb = u_upload_create(&r300->context, 128 * 1024, 16, PIPE_BIND_VERTEX_BUFFER); if (r300->upload_vb == NULL) - goto no_upload_vb; + goto fail; r300->tran.translate_cache = translate_cache_create(); + if (r300->tran.translate_cache == NULL) + goto fail; r300_init_states(&r300->context); @@ -488,10 +504,8 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen, return &r300->context; - no_upload_ib: - u_upload_destroy(r300->upload_ib); - no_upload_vb: - FREE(r300); + fail: + r300_destroy_context(&r300->context); return NULL; }