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-rw-r--r--nx-X11/programs/Xserver/os/io.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/nx-X11/programs/Xserver/os/io.c b/nx-X11/programs/Xserver/os/io.c
index 92a3f0476..a02d7fb0c 100644
--- a/nx-X11/programs/Xserver/os/io.c
+++ b/nx-X11/programs/Xserver/os/io.c
@@ -958,7 +958,7 @@ WriteToClient (ClientPtr who, int count, const void *__buf)
}
}
#endif
- if (oco->count + count + padBytes > oco->size)
+ if (oco->count == 0 || oco->count + count + padBytes > oco->size)
{
FD_CLR(oc->fd, &OutputPending);
if(!XFD_ANYSET(&OutputPending)) {