On 2013-08-21 11:44, Ian Abbott wrote:
On 2013-08-21 09:28, Dan Carpenter wrote:
Smatch complains that there is a missing break statement here.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
This looks correct to me, but please double check.
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 35251e7..03a0989 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -1404,6 +1404,7 @@ no_dma:
if (it->options[3] > 0)
/* we use external trigger */
devpriv->use_ext_trg = 1;
+ break;
case boardA821:
devpriv->max_812_ai_mode0_rangewait = 1;
devpriv->mode_reg_int = (irq << 4) & 0xf0;
The missing break might be deliberate; I'll need to track down the
manuals for the affected cards. case boardACL8216 in the same switch
also has no break.
After examining the manuals for the affected boards (the formatting of
the manual for PCL-812 and PCL-812PG is dreadful!), the 'break' before
'case boardA821' does seem to be missing, although the bug is harmless
as it only affects some "don't care" bits in a hardware register
(PCL812_MODE at offset 11) for the cases that fall through to here, and
they assign devpriv->max_812_ai_mode0_rangewait to the same value (1).
The other fall through from 'case boardACL8216' to 'case boardPCL812PG'
in this switch seems to be deliberate.
Acked-by: Ian Abbott <abbotti@xxxxxxxxx>
Reviewed-by: Ian Abbott <abbotti@xxxxxxxxx>
(whichever is appropriate)
--
-=( Ian Abbott @ MEV Ltd. E-mail: <abbotti@xxxxxxxxx> )=-
-=( Tel: +44 (0)161 477 1898 FAX: +44 (0)161 718 3587 )=-
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