Fix implementation of hash algorithm

diff --git a/ext/session/mod_mm.c b/ext/session/mod_mm.c
index 7255165e32513b5050aedcb173b9a0a7563fe78b..c3e4d5ad06577904687608912429ad43b7a0690d 100644 (file)
--- a/ext/session/mod_mm.c
+++ b/ext/session/mod_mm.c
@@ -77,7 +77,7 @@ static unsigned int ps_sd_hash(const char *data)
        for (val = 0; *data; data++) {
                val = (val << ONE_EIGTH) + *data;
                if ((i = val & HIGH_BITS) != 0)
-                       val = (val ^ (i >> THREE_QUARTERS)) & -HIGH_BITS;
+                       val = (val ^ (i >> THREE_QUARTERS)) & ~HIGH_BITS;
        }
        
        return val;