On Mon, 29 Feb 2016 13:13:30 +0100, Sudip Mukherjee wrote:

While registering pardev, the irq_func was also registered. As a result when we tried to probe for the card, an interrupt was generated and in the ISR we tried to dereference private_data. But private_data is still NULL as we have not yet done snd_mts64_create(). Lets probe for the card after mts64 is created.

Reported-by: Fengguang Wu fengguang.wu@intel.com Fixes: 94a573500d48 ("ALSA: mts64: use new parport device model") Signed-off-by: Sudip Mukherjee sudip.mukherjee@codethink.co.uk

Applied, thanks.

Takashi

---

sound/drivers/mts64.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/sound/drivers/mts64.c b/sound/drivers/mts64.c index c76bd87..fd4d18d 100644 --- a/sound/drivers/mts64.c +++ b/sound/drivers/mts64.c @@ -964,11 +964,6 @@ static int snd_mts64_probe(struct platform_device *pdev) err = -EIO; goto free_pardev; }

• err = mts64_probe(p);

• if (err) {

• err = -EIO;
  

• goto release_pardev;
  

• }

  if ((err = snd_mts64_create(card, pardev, &mts)) < 0) { snd_printd("Cannot create main component\n");

@@ -976,6 +971,12 @@ static int snd_mts64_probe(struct platform_device *pdev) } card->private_data = mts; card->private_free = snd_mts64_card_private_free;

• err = mts64_probe(p);

• if (err) {

• err = -EIO;
  

• goto __err;
  

• }

  if ((err = snd_mts64_rawmidi_create(card)) < 0) { snd_printd("Creating Rawmidi component failed\n");

-- 1.9.1