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-rw-r--r--Documentation/sound/alsa/ALSA-Configuration.txt1
-rw-r--r--sound/pci/hda/hda_intel.c3
2 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 1b749947233c..e6b57dd46a4f 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -758,6 +758,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
single_cmd - Use single immediate commands to communicate with
codecs (for debugging only)
+ disable_msi - Disable Message Signaled Interrupt (MSI)
This module supports one card and autoprobe.
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index cc50d13ee90c..bfd74a526b85 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1422,8 +1422,9 @@ static int azx_free(struct azx *chip)
}
if (chip->irq >= 0) {
- pci_disable_msi(chip->pci);
free_irq(chip->irq, (void*)chip);
+ if (!disable_msi)
+ pci_disable_msi(chip->pci);
}
if (chip->remap_addr)
iounmap(chip->remap_addr);