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vkd3d-shader/dxil: Handle sm6_parser_add_instruction() returning NULL.

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Only calls to sm6_parser_add_instruction() where we are using the
returned vkd3d_shader_instruction are checked for, since these return
values might cause NULL dereferences if unchecked.

Other calls to sm6_parser_add_instruction() can be left alone since the
error is still recorded via sm6->p.status.
This commit is contained in:
Francisco Casas
2025-10-01 13:21:58 -03:00
committed by Henri Verbeet
parent bdba25d028
commit aa943c51ea
Notes: Henri Verbeet 2025-10-03 00:55:08 +02:00 
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1761
3 changed files with 69 additions and 35 deletions
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7
libs/vkd3d-shader/vkd3d_shader_private.h
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@@ -1368,6 +1368,13 @@ static inline bool vkd3d_shader_ver_le(const struct vkd3d_shader_version *v, uns
void vsir_instruction_init(struct vkd3d_shader_instruction *ins,
const struct vkd3d_shader_location *location, enum vkd3d_shader_opcode opcode);
static inline void vkd3d_shader_instruction_make_nop(struct vkd3d_shader_instruction *ins)
{
struct vkd3d_shader_location location = ins->location;
vsir_instruction_init(ins, &location, VSIR_OP_NOP);
}
static inline bool vkd3d_shader_instruction_has_texel_offset(const struct vkd3d_shader_instruction *ins)
{
return ins->texel_offset.u || ins->texel_offset.v || ins->texel_offset.w;