w1: mxc_w1: Fix incorrect "presence" status

W1 reset_bus() should return zero if slave device is present. This patch fix this issue. Signed-off-by: Alexander Shiyan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
sum-it · Jun 20, 2014 · 37014f5 · 37014f5
1 parent b29f680
commit 37014f5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/w1/masters/mxc_w1.c b/drivers/w1/masters/mxc_w1.c
@@ -66,7 +66,7 @@ static u8 mxc_w1_ds2_reset_bus(void *data)
 
 		udelay(100);
 	}
-	return !!(reg_val & MXC_W1_CONTROL_PST);
+	return !(reg_val & MXC_W1_CONTROL_PST);
 }
 
 /*