diff options
| -rw-r--r-- | drivers/hid/hid-prodikeys.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c index 21544ebff855..5a3b3d974d84 100644 --- a/drivers/hid/hid-prodikeys.c +++ b/drivers/hid/hid-prodikeys.c @@ -551,10 +551,14 @@ static void pcmidi_setup_extra_keys( static int pcmidi_set_operational(struct pcmidi_snd *pm) { + int rc; + if (pm->ifnum != 1) return 0; /* only set up ONCE for interace 1 */ - pcmidi_get_output_report(pm); + rc = pcmidi_get_output_report(pm); + if (rc < 0) + return rc; pcmidi_submit_output_report(pm, 0xc1); return 0; } @@ -683,7 +687,11 @@ static int pcmidi_snd_initialise(struct pcmidi_snd *pm) spin_lock_init(&pm->rawmidi_in_lock); init_sustain_timers(pm); - pcmidi_set_operational(pm); + err = pcmidi_set_operational(pm); + if (err < 0) { + pk_error("failed to find output report\n"); + goto fail_register; + } /* register it */ err = snd_card_register(card); |