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| author | Takashi Iwai <tiwai@suse.de> | 2008-04-22 17:28:11 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-04-24 12:00:41 +0200 |
| commit | ebf029da38829ede6b53ac8a5ad45b149064ea16 (patch) | |
| tree | aebf6bddd245a874577fc321978b3f7137e8ac39 /sound/pci/cs46xx | |
| parent | 6b9a9b329640b7e8143df7b2782884ea758650f7 (diff) | |
| download | linux-3.10-ebf029da38829ede6b53ac8a5ad45b149064ea16.tar.gz linux-3.10-ebf029da38829ede6b53ac8a5ad45b149064ea16.tar.bz2 linux-3.10-ebf029da38829ede6b53ac8a5ad45b149064ea16.zip | |
[ALSA] Fix possible races at free_irq in PCI drivers
The irq handler of PCI drivers must be released before releasing other
resources since the handler for a shared irq can be still called and
may access the freed resource again.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/cs46xx')
| -rw-r--r-- | sound/pci/cs46xx/cs46xx_lib.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c index 87ddffcd9d8..e214e567dec 100644 --- a/sound/pci/cs46xx/cs46xx_lib.c +++ b/sound/pci/cs46xx/cs46xx_lib.c @@ -2772,6 +2772,9 @@ static int snd_cs46xx_free(struct snd_cs46xx *chip) if (chip->irq >= 0) free_irq(chip->irq, chip); + if (chip->active_ctrl) + chip->active_ctrl(chip, -chip->amplifier); + for (idx = 0; idx < 5; idx++) { struct snd_cs46xx_region *region = &chip->region.idx[idx]; if (region->remap_addr) @@ -2779,9 +2782,6 @@ static int snd_cs46xx_free(struct snd_cs46xx *chip) release_and_free_resource(region->resource); } - if (chip->active_ctrl) - chip->active_ctrl(chip, -chip->amplifier); - #ifdef CONFIG_SND_CS46XX_NEW_DSP if (chip->dsp_spos_instance) { cs46xx_dsp_spos_destroy(chip); |