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-rw-r--r--src/glx/dri2_glx.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
index 18542d18201..07a3384d0ab 100644
--- a/src/glx/dri2_glx.c
+++ b/src/glx/dri2_glx.c
@@ -830,7 +830,9 @@ dri2SetSwapInterval(__GLXDRIdrawable *pdraw, int interval)
switch (vblank_mode) {
case DRI_CONF_VBLANK_NEVER:
- return GLX_BAD_VALUE;
+ if (interval != 0)
+ return GLX_BAD_VALUE;
+ break;
case DRI_CONF_VBLANK_ALWAYS_SYNC:
if (interval <= 0)
return GLX_BAD_VALUE;