diff options
| author |   Dan Carpenter <dan.carpenter@oracle.com> | 2014-03-05 14:07:15 +0300 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2014-03-05 12:11:54 +0100 |
| commit | 4f50b41fa3deb541364462f3014e0b9d09b91f75 (patch) | |
| tree | b6522d71afc6e90b2d0f92b3d6b3cdf5d1130c2c /sound/pci/echoaudio | |
| parent | ALSA: lola: NULL deref on allocation error (diff) | |
| download | linux-dev-4f50b41fa3deb541364462f3014e0b9d09b91f75.tar.xz linux-dev-4f50b41fa3deb541364462f3014e0b9d09b91f75.zip | |
ALSA: echoaudio: use after free on error
There are some places where we dereference "chip" in the error message
but we've already freed it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/echoaudio')
| -rw-r--r-- | sound/pci/echoaudio/echoaudio.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c index 166ec0c120d4..9f10c9e0df5e 100644 --- a/sound/pci/echoaudio/echoaudio.c +++ b/sound/pci/echoaudio/echoaudio.c @@ -1990,8 +1990,8 @@ static int snd_echo_create(struct snd_card *card, if ((chip->iores = request_mem_region(chip->dsp_registers_phys, sz, ECHOCARD_NAME)) == NULL) { - snd_echo_free(chip); dev_err(chip->card->dev, "cannot get memory region\n"); + snd_echo_free(chip); return -EBUSY; } chip->dsp_registers = (volatile u32 __iomem *) @@ -1999,8 +1999,8 @@ static int snd_echo_create(struct snd_card *card, if (request_irq(pci->irq, snd_echo_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) { - snd_echo_free(chip); dev_err(chip->card->dev, "cannot grab irq\n"); + snd_echo_free(chip); return -EBUSY; } chip->irq = pci->irq; @@ -2012,8 +2012,8 @@ static int snd_echo_create(struct snd_card *card, if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), sizeof(struct comm_page), &chip->commpage_dma_buf) < 0) { - snd_echo_free(chip); dev_err(chip->card->dev, "cannot allocate the comm page\n"); + snd_echo_free(chip); return -ENOMEM; } chip->comm_page_phys = chip->commpage_dma_buf.addr; @@ -2291,8 +2291,8 @@ static int snd_echo_resume(struct device *dev) if (request_irq(pci->irq, snd_echo_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) { - snd_echo_free(chip); dev_err(chip->card->dev, "cannot grab irq\n"); + snd_echo_free(chip); return -EBUSY; } chip->irq = pci->irq; |