From: Kulikov Vasiliy <segooon@gmail.com>
To: kernel-janitors@vger.kernel.org
Cc: Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>,
Eliot Blennerhassett <eblennerhassett@audioscience.com>,
linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org
Subject: [PATCH 8/8] sound: asihpi: fix sign bug
Date: Thu, 15 Jul 2010 22:48:19 +0400 [thread overview]
Message-ID: <1279219700-12892-1-git-send-email-segooon@gmail.com> (raw)
bytes_per_sec is unsigned, so if snd_pcm_format_width() return error we
would not see it.
Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
---
sound/pci/asihpi/asihpi.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
index 91218f7..c80b0b8 100644
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -460,6 +460,7 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
int err;
u16 format;
+ int width;
unsigned int bytes_per_sec;
print_hwparams(params);
@@ -512,9 +513,10 @@ static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
dpcm->hpi_buffer_attached);
}
bytes_per_sec = params_rate(params) * params_channels(params);
- bytes_per_sec *= snd_pcm_format_width(params_format(params));
+ width = snd_pcm_format_width(params_format(params));
+ bytes_per_sec *= width;
bytes_per_sec /= 8;
- if (bytes_per_sec <= 0)
+ if (width < 0 || bytes_per_sec == 0)
return -EINVAL;
dpcm->bytes_per_sec = bytes_per_sec;
--
1.7.0.4
reply other threads:[~2010-07-15 18:48 UTC|newest]
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