swrast: silence uninitialized var warnings

diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index 7ab60b1e5140c2a0cb4bb8ce332afaf27c011201..ccdbe5f79c42ff54b7baec61598ba5647b4a4d15 100644 (file)
--- a/src/mesa/swrast/s_span.c
+++ b/src/mesa/swrast/s_span.c
@@ -1052,8 +1052,8 @@ put_values(struct gl_context *ctx, struct gl_renderbuffer *rb,
            GLuint count, const GLint x[], const GLint y[],
            const void *values, const GLubyte *mask)
 {
-   gl_pack_ubyte_rgba_func pack_ubyte;
-   gl_pack_float_rgba_func pack_float;
+   gl_pack_ubyte_rgba_func pack_ubyte = NULL;
+   gl_pack_float_rgba_func pack_float = NULL;
    GLuint i;
 
    if (datatype == GL_UNSIGNED_BYTE)