From: Dan Carpenter <dan.carpenter@oracle.com>
To: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>, Leon Romanovsky <leon@kernel.org>,
alsa-devel@alsa-project.org, kernel-janitors@vger.kernel.org
Subject: [PATCH] ALSA: korg1212: Fix crash in snd_korg1212_create()
Date: Wed, 21 Jul 2021 17:01:22 +0300 [thread overview]
Message-ID: <20210721140122.GA5251@kili> (raw)
The "dsp_code" is not initialized until the next line so we can't
dereference it.
Fixes: b5cde369b618 ("ALSA: korg1212: Allocate resources with device-managed APIs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
sound/pci/korg1212/korg1212.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index 7872abbd4587..3b2df5d06839 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -2256,17 +2256,17 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci)
korg1212->AdatTimeCodePhy = korg1212->sharedBufferPhy +
offsetof(struct KorgSharedBuffer, AdatTimeCode);
- korg1212->dma_dsp = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV,
- dsp_code->size);
- if (!korg1212->dma_dsp)
- return -ENOMEM;
-
err = request_firmware(&dsp_code, "korg/k1212.dsp", &pci->dev);
if (err < 0) {
snd_printk(KERN_ERR "firmware not available\n");
return err;
}
+ korg1212->dma_dsp = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV,
+ dsp_code->size);
+ if (!korg1212->dma_dsp)
+ return -ENOMEM;
+
K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
korg1212->dma_dsp->area, korg1212->dma_dsp->addr, dsp_code->size,
stateName[korg1212->cardState]);
--
2.20.1
next reply other threads:[~2021-07-21 14:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-21 14:01 Dan Carpenter [this message]
2021-07-21 14:04 ` [PATCH] ALSA: korg1212: Fix crash in snd_korg1212_create() Takashi Iwai
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210721140122.GA5251@kili \
--to=dan.carpenter@oracle.com \
--cc=alsa-devel@alsa-project.org \
--cc=kernel-janitors@vger.kernel.org \
--cc=leon@kernel.org \
--cc=perex@perex.cz \
--cc=tiwai@suse.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox