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authorH Hartley Sweeten <hsweeten@visionengravers.com>2014-02-10 23:20:33 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-02-14 18:31:30 +0100
commit8abc7287f6ada9f8378941b81434242db832b5f4 (patch)
treecca42278943a39f62167a8c8e4309d4a43dfb61b /drivers
parentstaging: comedi: cb_das16_cs: remove incomplete async command support (diff)
downloadlinux-8abc7287f6ada9f8378941b81434242db832b5f4.tar.xz
linux-8abc7287f6ada9f8378941b81434242db832b5f4.zip
staging: comedi: cb_pcidas: trigger sources are validated in (*do_cmdtest)
The trigger sources were already validataed in the (*do_cmdtest) before the (*do_cmd) is called. Refactor the code in cb_pcidas_ai_cmd() to remove the final else which can never be reached. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/staging/comedi/drivers/cb_pcidas.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 7d068ebe0575..5452b718f93f 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -1017,9 +1017,9 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev,
/* set start trigger and burst mode */
bits = 0;
- if (cmd->start_src == TRIG_NOW)
+ if (cmd->start_src == TRIG_NOW) {
bits |= SW_TRIGGER;
- else if (cmd->start_src == TRIG_EXT) {
+ } else { /* TRIG_EXT */
bits |= EXT_TRIGGER | TGEN | XTRCL;
if (thisboard->is_1602) {
if (cmd->start_arg & CR_INVERT)
@@ -1027,9 +1027,6 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev,
if (cmd->start_arg & CR_EDGE)
bits |= TGSEL;
}
- } else {
- comedi_error(dev, "bug!");
- return -1;
}
if (cmd->convert_src == TRIG_NOW && cmd->chanlist_len > 1)
bits |= BURSTE;