diff options
| author | David Kershner <david.kershner@unisys.com> | 2017-03-28 09:34:44 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-29 09:17:03 +0200 |
| commit | 5dca9b294436eb381b825f60751723e80173cb4b (patch) | |
| tree | e8d848ae1879c071d7eb8efbebd715e233046343 /drivers/staging/unisys | |
| parent | b90194d9bb6c006062624e7ca6424aa1474986df (diff) | |
staging: unisys: visorbus: add error handling visorbus_enable_channel_interrupt
Add error handling to visorbus_enable_channel_interrupt.
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>
Diffstat (limited to 'drivers/staging/unisys')
| -rw-r--r-- | drivers/staging/unisys/include/visorbus.h | 2 | ||||
| -rw-r--r-- | drivers/staging/unisys/visorbus/visorbus_main.c | 6 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index 65829391b3bf..de0635542fbd 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -180,7 +180,7 @@ int visorbus_read_channel(struct visor_device *dev, int visorbus_write_channel(struct visor_device *dev, unsigned long offset, void *src, unsigned long nbytes); -void visorbus_enable_channel_interrupts(struct visor_device *dev); +int visorbus_enable_channel_interrupts(struct visor_device *dev); void visorbus_disable_channel_interrupts(struct visor_device *dev); /* Levels of severity for diagnostic events, in order from lowest severity to diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index c97f32f5c235..bf0f191e79d3 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -580,17 +580,17 @@ EXPORT_SYMBOL_GPL(visorbus_write_channel); * Currently we don't yet have a real interrupt, so for now we just call the * interrupt function periodically via a timer. */ -void +int visorbus_enable_channel_interrupts(struct visor_device *dev) { struct visor_driver *drv = to_visor_driver(dev->device.driver); if (!drv->channel_interrupt) { dev_err(&dev->device, "%s no interrupt function!\n", __func__); - return; + return -ENOENT; } - dev_start_periodic_work(dev); + return dev_start_periodic_work(dev); } EXPORT_SYMBOL_GPL(visorbus_enable_channel_interrupts); |