diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-12 08:48:47 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-12 08:48:47 -0800 |
| commit | 0e9695d9a45e9ea643f2f4e7f2859876940c58ae (patch) | |
| tree | 58ac89957c99634894681459f49b8974449c02c7 | |
| parent | 280c96b16a732cec207ccef7f70cb9ec727d3fd9 (diff) | |
| parent | fed08d036f2aabd8d0c684439de37f8ebec2bbc2 (diff) | |
Merge branch 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda-intel: Avoid divide by zero crash
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index b8faa6dc5abe..e767c3f395ab 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1893,6 +1893,12 @@ static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev) if (!bdl_pos_adj[chip->dev_index]) return 1; /* no delayed ack */ + if (azx_dev->period_bytes == 0) { + printk(KERN_WARNING + "hda-intel: Divide by zero was avoided " + "in azx_dev->period_bytes.\n"); + return 0; + } if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2) return 0; /* NG - it's below the period boundary */ return 1; /* OK, it's fine */ |