linux-kernel - [PATCH 06/10 v2] ALSA: msnd: check request

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 29 Jul 2010 14:45:24 +0400
From:	Kulikov Vasiliy <segooon@...il.com>
To:	kernel-janitors@...r.kernel.org
Cc:	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH 06/10 v2] ALSA: msnd: check request_region() return value

request_region() may fail, if so return -EBUSY.

Signed-off-by: Kulikov Vasiliy <segooon@...il.com>
---
 sound/isa/msnd/msnd_pinnacle.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index 60b6abd..ed42f8e 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -549,7 +549,10 @@ static int __devinit snd_msnd_attach(struct snd_card *card)
 		printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", chip->irq);
 		return err;
 	}
-	request_region(chip->io, DSP_NUMIO, card->shortname);
+	if (request_region(chip->io, DSP_NUMIO, card->shortname) == NULL) {
+		free_irq(chip->irq, chip);
+		return -EBUSY;
+	}
 
 	if (!request_mem_region(chip->base, BUFFSIZE, card->shortname)) {
 		printk(KERN_ERR LOGNAME
-- 
1.7.0.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/