libata: clear drvdata in ata_host_release(), take#2

[powerpc.git] / include / asm-cris / atomic.h

diff --git a/include/asm-cris/atomic.h b/include/asm-cris/atomic.h
index 2df2c7a..0b51a87 100644 (file)
--- a/include/asm-cris/atomic.h
+++ b/include/asm-cris/atomic.h
@@ -136,6 +136,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
        return ret;
 }
 
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
 static inline int atomic_add_unless(atomic_t *v, int a, int u)
 {
        int ret;