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staging: unisys: visorbus: add error handling for dev_start_periodic_work

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Report errors if we have a problem in dev_start_periodic_work.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Kershner 2017-03-28 09:34:43 -04:00 committed by Greg Kroah-Hartman
parent 3659955a64
commit b90194d9bb
1 changed files with 3 additions and 2 deletions
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5
drivers/staging/unisys/visorbus/visorbus_main.c
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@ -464,16 +464,17 @@ dev_periodic_work(unsigned long __opaque)
mod_timer(&dev->timer, jiffies + POLLJIFFIES_NORMALCHANNEL);
}
static void
static int
dev_start_periodic_work(struct visor_device *dev)
{
if (dev->being_removed || dev->timer_active)
return;
return -EINVAL;
/* now up by at least 2 */
get_device(&dev->device);
dev->timer.expires = jiffies + POLLJIFFIES_NORMALCHANNEL;
add_timer(&dev->timer);
dev->timer_active = true;
return 0;
}
static void