Messages in this thread Patch in this message | | | Subject | [PATCH] mISDN: suppress compiler warning | From | Paul Bolle <> | Date | Fri, 21 Sep 2012 12:25:24 +0200 |
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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 <pebolle@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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