[Mesa-dev] [PATCH] radeonsi: reject invalid vertex element formats

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

This should fix a coverity defect.
---
 src/gallium/drivers/radeonsi/si_state.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index f60a499..5bc1789 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -3343,20 +3343,25 @@ static void *si_create_vertex_elements(struct pipe_context *ctx,
 			return NULL;
 		}
 
 		if (!used[vbo_index]) {
 			v->first_vb_use_mask |= 1 << i;
 			used[vbo_index] = true;
 		}
 
 		desc = util_format_description(elements[i].src_format);
 		first_non_void = util_format_get_first_non_void_channel(elements[i].src_format);
+		if (first_non_void < 0) {
+			FREE(v);
+			return NULL;
+		}
+
 		data_format = si_translate_buffer_dataformat(ctx->screen, desc, first_non_void);
 		num_format = si_translate_buffer_numformat(ctx->screen, desc, first_non_void);
 		channel = &desc->channel[first_non_void];
 
 		v->rsrc_word3[i] = S_008F0C_DST_SEL_X(si_map_swizzle(desc->swizzle[0])) |
 				   S_008F0C_DST_SEL_Y(si_map_swizzle(desc->swizzle[1])) |
 				   S_008F0C_DST_SEL_Z(si_map_swizzle(desc->swizzle[2])) |
 				   S_008F0C_DST_SEL_W(si_map_swizzle(desc->swizzle[3])) |
 				   S_008F0C_NUM_FORMAT(num_format) |
 				   S_008F0C_DATA_FORMAT(data_format);
-- 
2.7.4