diff options
| author | Takashi Iwai <tiwai@suse.de> | 2012-07-23 11:35:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-09 08:27:53 -0700 |
| commit | de4bc9fc942526dbcb0246dbb2ca87ad9b3b02b0 (patch) | |
| tree | c0c4d6d78a4b830e6f97c6e2a8606f59a1c66276 /sound/drivers/mpu401/mpu401_uart.c | |
| parent | f45cd6dfe00503a2ff49920bf8365a55ea69edbb (diff) | |
ALSA: mpu401: Fix missing initialization of irq field
commit bc733d495267a23ef8660220d696c6e549ce30b3 upstream.
The irq field of struct snd_mpu401 is supposed to be initialized to -1.
Since it's set to zero as of now, a probing error before the irq
installation results in a kernel warning "Trying to free already-free
IRQ 0".
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=44821
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/drivers/mpu401/mpu401_uart.c')
| -rw-r--r-- | sound/drivers/mpu401/mpu401_uart.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/drivers/mpu401/mpu401_uart.c b/sound/drivers/mpu401/mpu401_uart.c index 2af09996a3d..74f5a3da87e 100644 --- a/sound/drivers/mpu401/mpu401_uart.c +++ b/sound/drivers/mpu401/mpu401_uart.c @@ -554,6 +554,7 @@ int snd_mpu401_uart_new(struct snd_card *card, int device, spin_lock_init(&mpu->output_lock); spin_lock_init(&mpu->timer_lock); mpu->hardware = hardware; + mpu->irq = -1; if (! (info_flags & MPU401_INFO_INTEGRATED)) { int res_size = hardware == MPU401_HW_PC98II ? 4 : 2; mpu->res = request_region(port, res_size, "MPU401 UART"); |