Staging: comedi: pcl816: update convert_src mask for AI cmdtest

[safe/jmp/linux-2.6] / drivers / staging / comedi / drivers / pcl816.c

diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index f9a0dac..1b1708a 100644 (file)
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -488,7 +488,9 @@ static int pcl816_ai_cmdtest(struct comedi_device *dev,
        if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src)
                err++;
 
-       if (!(cmd->convert_src & (TRIG_EXT | TRIG_TIMER)))
+       tmp = cmd->convert_src;
+       cmd->convert_src &= TRIG_EXT | TRIG_TIMER;
+       if (!cmd->convert_src || tmp != cmd->convert_src)
                err++;
 
        tmp = cmd->scan_end_src;