Building the hfcpci driver triggers this GCC warning:
drivers/isdn/hardware/mISDN/hfcpci.c:2298:2: warning: ignoring return value
of 'driver_for_each_device', declared with attribute warn_unused_result
[-Wunused-result]
That return value is apparently ignored because _hfcpci_softirq() will
always return 0. Suppress this warning in the way a few other drivers do
that too.
Signed-off-by: Paul Bolle <pebo...@tiscali.nl>
---
0) I noticed this warning while building v3.6-rc6 on current Fedora 17,
using Fedora's default config.
1) Compile tested only.
drivers/isdn/hardware/mISDN/hfcpci.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c
b/drivers/isdn/hardware/mISDN/hfcpci.c
index 81363ff..a547c8c 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -2295,8 +2295,11 @@ _hfcpci_softirq(struct device *dev, void *arg)
static void
hfcpci_softirq(void *arg)
{
- (void) driver_for_each_device(&hfc_driver.driver, NULL, arg,
+ int ret;
+
+ ret = driver_for_each_device(&hfc_driver.driver, NULL, arg,
_hfcpci_softirq);
+ (void)ret; /* suppress compiler warning */
/* if next event would be in the past ... */
if ((s32)(hfc_jiffies + tics - jiffies) <= 0)
--
1.7.11.4
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