From fff1abc4d54e469140a699612b4db8d6397bfcba Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 13 Mar 2017 09:53:57 -0300 Subject: [PATCH] [media] cx231xx-audio: fix init error path Make sure to release the snd_card also on a late allocation error. Fixes: e0d3bafd0258 ("V4L/DVB (10954): Add cx231xx USB driver") Cc: stable # 2.6.30 Cc: Sri Deevi Signed-off-by: Johan Hovold Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/cx231xx/cx231xx-audio.c | 25 +++++++++++++---------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/drivers/media/usb/cx231xx/cx231xx-audio.c b/drivers/media/usb/cx231xx/cx231xx-audio.c index cf80842dfa08..f3729d6eb46a 100644 --- a/drivers/media/usb/cx231xx/cx231xx-audio.c +++ b/drivers/media/usb/cx231xx/cx231xx-audio.c @@ -670,10 +670,8 @@ static int cx231xx_audio_init(struct cx231xx *dev) spin_lock_init(&adev->slock); err = snd_pcm_new(card, "Cx231xx Audio", 0, 0, 1, &pcm); - if (err < 0) { - snd_card_free(card); - return err; - } + if (err < 0) + goto err_free_card; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_cx231xx_pcm_capture); @@ -687,10 +685,9 @@ static int cx231xx_audio_init(struct cx231xx *dev) INIT_WORK(&dev->wq_trigger, audio_trigger); err = snd_card_register(card); - if (err < 0) { - snd_card_free(card); - return err; - } + if (err < 0) + goto err_free_card; + adev->sndcard = card; adev->udev = dev->udev; @@ -709,9 +706,10 @@ static int cx231xx_audio_init(struct cx231xx *dev) "audio EndPoint Addr 0x%x, Alternate settings: %i\n", adev->end_point_addr, adev->num_alt); adev->alt_max_pkt_size = kmalloc(32 * adev->num_alt, GFP_KERNEL); - - if (adev->alt_max_pkt_size == NULL) - return -ENOMEM; + if (!adev->alt_max_pkt_size) { + err = -ENOMEM; + goto err_free_card; + } for (i = 0; i < adev->num_alt; i++) { u16 tmp = @@ -725,6 +723,11 @@ static int cx231xx_audio_init(struct cx231xx *dev) } return 0; + +err_free_card: + snd_card_free(card); + + return err; } static int cx231xx_audio_fini(struct cx231xx *dev) -- GitLab