From 37233f1ee0213a224611788bbab38840ba9f8308 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 20 Jan 2011 13:46:53 -0700 Subject: [PATCH] softpipe: check for null pointers during context create/destroy See http://bugs.freedesktop.org/show_bug.cgi?id=32309 Apparently, malloc() is failing during context creation. Not checking for nulls here led to crashes elsewhere. --- src/gallium/drivers/softpipe/sp_context.c | 26 ++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-) diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c index 2ee21817031..fe54f92addf 100644 --- a/src/gallium/drivers/softpipe/sp_context.c +++ b/src/gallium/drivers/softpipe/sp_context.c @@ -91,10 +91,17 @@ softpipe_destroy( struct pipe_context *pipe ) if (softpipe->draw) draw_destroy( softpipe->draw ); - softpipe->quad.shade->destroy( softpipe->quad.shade ); - softpipe->quad.depth_test->destroy( softpipe->quad.depth_test ); - softpipe->quad.blend->destroy( softpipe->quad.blend ); - softpipe->quad.pstipple->destroy( softpipe->quad.pstipple ); + if (softpipe->quad.shade) + softpipe->quad.shade->destroy( softpipe->quad.shade ); + + if (softpipe->quad.depth_test) + softpipe->quad.depth_test->destroy( softpipe->quad.depth_test ); + + if (softpipe->quad.blend) + softpipe->quad.blend->destroy( softpipe->quad.blend ); + + if (softpipe->quad.pstipple) + softpipe->quad.pstipple->destroy( softpipe->quad.pstipple ); for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { sp_destroy_tile_cache(softpipe->cbuf_cache[i]); @@ -262,13 +269,22 @@ softpipe_create_context( struct pipe_screen *screen, softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe ); softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe ); - for (i = 0; i < PIPE_MAX_SAMPLERS; i++) + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { softpipe->fragment_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe ); + if (!softpipe->fragment_tex_cache[i]) + goto fail; + } + for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) { softpipe->vertex_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe ); + if (!softpipe->vertex_tex_cache[i]) + goto fail; } + for (i = 0; i < PIPE_MAX_GEOMETRY_SAMPLERS; i++) { softpipe->geometry_tex_cache[i] = sp_create_tex_tile_cache( &softpipe->pipe ); + if (!softpipe->geometry_tex_cache[i]) + goto fail; } softpipe->fs_machine = tgsi_exec_machine_create(); -- 2.30.2