diff options
| author | David Arcari <darcari@redhat.com> | 2016-10-13 11:30:45 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2016-10-14 16:02:05 +0200 |
| commit | 93d26aeab54cc91119760bc4f1f22bff9a987d70 (patch) | |
| tree | f0908ebcda5e49602518fd95f5323e0323eb4f0b /drivers/hid/i2c-hid/i2c-hid.c | |
| parent | ba18a9314a94f4a54b4d0c5e0f1dc85af28eca35 (diff) | |
HID: i2c-hid: exit if the IRQ is not valid
When i2c-core doesn't find the IRQ associated to the GPIO because
the gpiochip is not available, it assigns -EPROBE_DEFER to the irq.
We need to bail out there and on any other error in an IRQ.
Signed-off-by: David Arcari <darcari@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/i2c-hid/i2c-hid.c')
| -rw-r--r-- | drivers/hid/i2c-hid/i2c-hid.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index 4cd606c0d89c..fe6b4e0eab4a 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -956,6 +956,13 @@ static int i2c_hid_probe(struct i2c_client *client, return -EINVAL; } + if (client->irq < 0) { + if (client->irq != -EPROBE_DEFER) + dev_err(&client->dev, + "HID over i2c doesn't have a valid IRQ\n"); + return client->irq; + } + ihid = kzalloc(sizeof(struct i2c_hid), GFP_KERNEL); if (!ihid) return -ENOMEM; |