w1: introduce a slave mutex for serializing IO

[deliverable/linux.git] / drivers / w1 / w1.h

diff --git a/drivers/w1/w1.h b/drivers/w1/w1.h
index 4d012ca3f32c42a27c2ccd54b9b506907abd597e..8c8be380a98a3bda388a22284a401b7756aaa2f1 100644 (file)
--- a/drivers/w1/w1.h
+++ b/drivers/w1/w1.h
@@ -75,6 +75,7 @@ struct w1_slave
        void                    *family_data;
        struct device           dev;
        struct completion       released;
+       struct mutex            mutex;
 };
 
 typedef void (*w1_slave_found_callback)(struct w1_master *, u64);