From 7da9da190f44f504db13570c0cec05dffa240cae Mon Sep 17 00:00:00 2001 From: Vinson Lee Date: Sun, 21 Feb 2010 02:13:15 -0800 Subject: [PATCH] mesa: Add assert to check for null pointer dereference. --- src/mesa/main/framebuffer.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c index 065e25f..269bc9a 100644 --- a/src/mesa/main/framebuffer.c +++ b/src/mesa/main/framebuffer.c @@ -829,8 +829,12 @@ update_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb) void _mesa_update_framebuffer(GLcontext *ctx) { - struct gl_framebuffer *drawFb = ctx->DrawBuffer; - struct gl_framebuffer *readFb = ctx->ReadBuffer; + struct gl_framebuffer *drawFb; + struct gl_framebuffer *readFb; + + assert(ctx); + drawFb = ctx->DrawBuffer; + readFb = ctx->ReadBuffer; update_framebuffer(ctx, drawFb); if (readFb != drawFb) -- 2.7.4