Mesa (gles3): Fix-up for "mesa: Rework crazy error code rules in glDrawBuffers()."

[Kenneth Graunke]

Module: Mesa
Branch: gles3
Commit: edaa34f7a4fb9892ad3c8b04939a7558dc63f0e0
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=edaa34f7a4fb9892ad3c8b04939a7558dc63f0e0

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Tue Dec 18 12:32:29 2012 -0800

Fix-up for "mesa: Rework crazy error code rules in glDrawBuffers()."

This should be squashed into the earlier patch when mailing it out for
review or merging it to master.

The error path was missing a "return" like all the other error paths.
Also, we may as well call it glDrawBuffers in the error message since
the ARB suffix doesn't exist in ES 3.

---

 src/mesa/main/buffers.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c
index c2a02c0..aa9b9f0 100644
--- a/src/mesa/main/buffers.c
+++ b/src/mesa/main/buffers.c
@@ -369,7 +369,8 @@ _mesa_DrawBuffers(GLsizei n, const GLenum *buffers)
          if (_mesa_is_gles3(ctx) && _mesa_is_user_fbo(ctx->DrawBuffer) &&
              buffers[output] != GL_NONE &&
              buffers[output] != GL_COLOR_ATTACHMENT0 + output) {
-            _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawBuffersARB(buffer)");
+            _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawBuffers(buffer)");
+            return;
          }
 
          /* From the OpenGL 3.0 specification, page 258: