mesa: posix_memalign requires alignment to be multiple of sizeof(void*)

diff --git a/src/gallium/include/pipe/p_util.h b/src/gallium/include/pipe/p_util.h
index 4e1a996122d21f11481c63bd5b1d1153185655f0..b4ab70a3fc86ca3e00fe99bfac3ba45c182757d9 100644 (file)
--- a/src/gallium/include/pipe/p_util.h
+++ b/src/gallium/include/pipe/p_util.h
@@ -213,6 +213,7 @@ align_malloc(size_t bytes, uint alignment)
 {
 #if defined(HAVE_POSIX_MEMALIGN)
    void *mem;
+   alignment = (alignment + (uint)sizeof(void*) - 1) & ~((uint)sizeof(void*) - 1);
    if(posix_memalign(& mem, alignment, bytes) != 0)
       return NULL;
    return mem;