From cbf5d9e6b9bcf03291cbb51db144b3e2773a8a2d Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 3 Oct 2007 11:15:11 -0700 Subject: [PATCH] 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 Acked-by: Eric W. Biederman Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index be1df85e5e2d..87e01615053d 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -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; -- 2.20.1