diff options
| author | Nicholas Mc Guire <hofrat@osadl.org> | 2015-05-23 14:46:30 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-05-25 17:39:21 -0400 |
| commit | bbfe0f37aee52d39999d5e475e1172a58f958a82 (patch) | |
| tree | 09384fdc355a0f0817c90b84d9d67be4e6b9e77f /drivers/net/irda | |
| parent | 6ae4ae8e512bd229f806c22f8a2cd751e4f987c2 (diff) | |
irda: irda-usb: use msecs_to_jiffies for conversions
API compliance scanning with coccinelle flagged:
Converting milliseconds to jiffies by "val * HZ / 1000" is technically
is not a clean solution as it does not handle all corner cases correctly.
By changing the conversion to use msecs_to_jiffies(val) conversion is
correct in all cases.
in the current code:
mod_timer(&self->rx_defer_timer, jiffies + (10 * HZ / 1000));
for HZ < 100 (e.g. CONFIG_HZ == 64|32 in alpha) this effectively results
in no delay at all.
Patch was compile tested for x86_64_defconfig (implies CONFIG_USB_IRDA=m)
Patch is against 4.1-rc4 (localversion-next is -next-20150522)
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/irda')
| -rw-r--r-- | drivers/net/irda/irda-usb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c index f6c916312577..25f21968fa5c 100644 --- a/drivers/net/irda/irda-usb.c +++ b/drivers/net/irda/irda-usb.c @@ -848,7 +848,9 @@ static void irda_usb_receive(struct urb *urb) * Jean II */ self->rx_defer_timer.function = irda_usb_rx_defer_expired; self->rx_defer_timer.data = (unsigned long) urb; - mod_timer(&self->rx_defer_timer, jiffies + (10 * HZ / 1000)); + mod_timer(&self->rx_defer_timer, + jiffies + msecs_to_jiffies(10)); + return; } |