[PATCH] drivers/isdn: eliminate duplicated test

From: Julia Lawall
Date: Tue Dec 08 2009 - 13:51:52 EST


From: Julia Lawall <julia@xxxxxxx>

The code checked slot_rx twice. Check slot_tx by analogy with the bank
case.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression E;
@@

(
*E && E
|
*E || E
)
// </smpl>

Signed-off-by: Julia Lawall <julia@xxxxxxx>

---
drivers/isdn/hardware/mISDN/hfcmulti.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c
index a6624ad..1a1420d 100644
--- a/drivers/isdn/hardware/mISDN/hfcmulti.c
+++ b/drivers/isdn/hardware/mISDN/hfcmulti.c
@@ -3152,7 +3152,7 @@ static void
hfcmulti_pcm(struct hfc_multi *hc, int ch, int slot_tx, int bank_tx,
int slot_rx, int bank_rx)
{
- if (slot_rx < 0 || slot_rx < 0 || bank_tx < 0 || bank_rx < 0) {
+ if (slot_tx < 0 || slot_rx < 0 || bank_tx < 0 || bank_rx < 0) {
/* disable PCM */
mode_hfcmulti(hc, ch, hc->chan[ch].protocol, -1, 0, -1, 0);
return;
--
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