Mesa (main): glx: Fix return values from __glXGetDrawableAttribute

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Module: Mesa
Branch: main
Commit: 82fea22607c610d000cd46cf404d06b57a9ea5aa
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=82fea22607c610d000cd46cf404d06b57a9ea5aa

Author: Adam Jackson <ajax at redhat.com>
Date:   Wed Jul  6 13:46:24 2022 -0400

glx: Fix return values from __glXGetDrawableAttribute

This is intended to return true on attribute-found.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17422>

---

 src/glx/glx_pbuffer.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/glx/glx_pbuffer.c b/src/glx/glx_pbuffer.c
index a3cc5049b06..9240b6c75ae 100644
--- a/src/glx/glx_pbuffer.c
+++ b/src/glx/glx_pbuffer.c
@@ -304,20 +304,20 @@ __glXGetDrawableAttribute(Display * dpy, GLXDrawable drawable,
       if (psc->driScreen->getBufferAge != NULL)
          *value = psc->driScreen->getBufferAge(pdraw);
 
-      return 0;
+      return 1;
    }
 
    if (pdraw) {
       if (attribute == GLX_SWAP_INTERVAL_EXT) {
          *value = pdraw->psc->driScreen->getSwapInterval(pdraw);
-         return 0;
+         return 1;
       } else if (attribute == GLX_MAX_SWAP_INTERVAL_EXT) {
          *value = pdraw->psc->driScreen->maxSwapInterval;
-         return 0;
+         return 1;
       } else if (attribute == GLX_LATE_SWAPS_TEAR_EXT) {
          *value = __glXExtensionBitIsEnabled(pdraw->psc,
                                              EXT_swap_control_tear_bit);
-         return 0;
+         return 1;
       }
    }
 #endif