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ALSA: ad1816a: Fix potential NULL pointer deref in snd_card_ad1816a_pnp()

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Use pr_warn() instead of dev_warn() when 'pdev' is NULL to avoid a
potential NULL pointer dereference.

Cc: stable@vger.kernel.org
Fixes: 20869176d7 ("ALSA: ad1816a: Use standard print API")
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20250703200616.304309-2-thorsten.blum@linux.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Thorsten Blum
2025-07-03 22:06:13 +02:00
committed by Takashi Iwai
parent db98ee5685
commit 043faef334
1 changed files with 1 additions and 1 deletions
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2
sound/isa/ad1816a/ad1816a.c
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@@ -98,7 +98,7 @@ static int snd_card_ad1816a_pnp(int dev, struct pnp_card_link *card,
pdev = pnp_request_card_device(card, id->devs[1].id, NULL); pdev = pnp_request_card_device(card, id->devs[1].id, NULL);
if (pdev == NULL) { if (pdev == NULL) {
mpu_port[dev] = -1; mpu_port[dev] = -1;
dev_warn(&pdev->dev, "MPU401 device busy, skipping.\n"); pr_warn("MPU401 device busy, skipping.\n");
return 0; return 0;
} }