From 5c337508feedfa35ba3f534bf212f08265db2022 Mon Sep 17 00:00:00 2001
From: michal <michal@michal-laptop.(none)>
Date: Wed, 29 Aug 2007 21:40:18 +0100
Subject: [PATCH] Fix ffs().

---
 src/mesa/pipe/p_util.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
 mode change 100644 => 100755 src/mesa/pipe/p_util.h

diff --git a/src/mesa/pipe/p_util.h b/src/mesa/pipe/p_util.h
old mode 100644
new mode 100755
index 3eff3328c78..436bda21393
--- a/src/mesa/pipe/p_util.h
+++ b/src/mesa/pipe/p_util.h
@@ -39,10 +39,10 @@
 #define Elements(x) sizeof(x)/sizeof(*(x))
 
 /**
- * Return pointer aligned to next multiple of 16 bytes.
+ * Return a pointer aligned to next multiple of 16 bytes.
  */
 static INLINE void *
-align16(void *unaligned)
+align16( void *unaligned )
 {
    union {
       void *p;
@@ -59,7 +59,12 @@ static INLINE unsigned ffs( unsigned u )
 {
    unsigned i;
 
+   if( u == 0 ) {
+      return 0;
+   }
+
    __asm bsf eax, [u]
+   __asm inc eax
    __asm mov [i], eax
 
    return i;
-- 
2.30.2