Commit cbf5d9e6 authored by Roland Dreier's avatar Roland Dreier Committed by Greg Kroah-Hartman

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: default avatarRoland Dreier <roland@digitalvampire.org>
Acked-by: default avatarEric W. Biederman <ebiederm@xmission.com>
Cc: stable <stable@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent a56bc69a
...@@ -132,7 +132,7 @@ void read_msi_msg(unsigned int irq, struct msi_msg *msg) ...@@ -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); pci_read_config_word(dev, msi_data_reg(pos, 1), &data);
} else { } else {
msg->address_hi = 0; 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; msg->data = data;
break; break;
......
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