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[965] Fix potential segfaults from bad realloc.

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C has no order of evaluation restrictions on function arguments, so we
attempted to realloc from new-size to new-size.
This commit is contained in:
Eric Anholt 2008-01-17 11:25:04 -08:00
parent c9b1fef0c9
commit e747e9a072
1 changed files with 4 additions and 1 deletions
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5
src/mesa/drivers/dri/i965/brw_vs_tnl.c
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@ -524,10 +524,13 @@ static void emit_op3fn(struct tnl_program *p,
GLuint nr = p->program->Base.NumInstructions++;
if (nr >= p->nr_instructions) {
int new_nr_instructions = p->nr_instructions * 2;
p->program->Base.Instructions =
_mesa_realloc(p->program->Base.Instructions,
sizeof(struct prog_instruction) * p->nr_instructions,
sizeof(struct prog_instruction) * (p->nr_instructions *= 2));
sizeof(struct prog_instruction) * new_nr_instructions);
p->nr_instructions = new_nr_instructions;
}
{