isdn: hfcpci_softirq: get func return to suppress compiler warning

commit d6d6d1bc44362112e10a48d434e5b3c716152003 upstream.

Signed-off-by: Antonio Alecrim Jr <antonio.alecrim@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index 3261de1..d5db9ac 100644 (file)
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -2316,8 +2316,8 @@ _hfcpci_softirq(struct device *dev, void *arg)
 static void
 hfcpci_softirq(void *arg)
 {
-       (void) driver_for_each_device(&hfc_driver.driver, NULL, arg,
-                                       _hfcpci_softirq);
+       WARN_ON_ONCE(driver_for_each_device(&hfc_driver.driver, NULL, arg,
+                                     _hfcpci_softirq) != 0);
 
        /* if next event would be in the past ... */
        if ((s32)(hfc_jiffies + tics - jiffies) <= 0)