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MSI: Use correct data offset for 32-bit MSI in read_msi_msg() 

While reading the MSI code trying to find a reason why MSI wouldn't
work for devices that have a 32-bit MSI address capability, I noticed
that read_msi_msg() seems to read the message data from the wrong
offset in this case.

Signed-off-by: Roland Dreier <roland@digitalvampire.org>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Roland Dreier 2007-10-03 11:15:11 -07:00 committed by Greg Kroah-Hartman
parent a56bc69a18
commit cbf5d9e6b9
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/msi.c
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@ -132,7 +132,7 @@ void read_msi_msg(unsigned int irq, struct msi_msg *msg)
pci_read_config_word(dev, msi_data_reg(pos, 1), &data);
} else {
msg->address_hi = 0;
pci_read_config_word(dev, msi_data_reg(pos, 1), &data);
pci_read_config_word(dev, msi_data_reg(pos, 0), &data);
}
msg->data = data;
break;