On 2013-02-14 21:36, Peter Huewe wrote:
Smatch warns about:
staging/comedi/drivers/cb_pcidas64.c:3304 prep_ao_dma() warn: if();
So the check currently does nothing and could be removed, but the better
alternative is to activate the check again and return -1; if it
evaluates to true.
Signed-off-by: Peter Huewe <peterhu...@gmx.de>
---
drivers/staging/comedi/drivers/cb_pcidas64.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c
b/drivers/staging/comedi/drivers/cb_pcidas64.c
index d33fc32..782498f 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -3301,7 +3301,8 @@ static int prep_ao_dma(struct comedi_device *dev, const
struct comedi_cmd *cmd)
num_bytes = load_ao_dma_buffer(dev, cmd);
if (num_bytes == 0)
return -1;
- if (num_bytes >= DMA_BUFFER_SIZE) ;
+ if (num_bytes >= DMA_BUFFER_SIZE)
+ return -1;
load_ao_dma(dev, cmd);
dma_start_sync(dev, 0);
I think the test is wrong as load_ao_dma_buffer can legitimately return
DMA_BUFFER_SIZE. Probably best just to get rid of the test altogether.
--
-=( Ian Abbott @ MEV Ltd. E-mail: <abbo...@mev.co.uk> )=-
-=( Tel: +44 (0)161 477 1898 FAX: +44 (0)161 718 3587 )=-
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