[2/3] pci: fix access of PCI_X_CMD by pcix get and set mmrbc functions

Commit Message

Dean Nelson March 10, 2010, 3:26 a.m. UTC

None

Patch

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 1decd4f..cdf201e 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2585,13 +2585,13 @@  EXPORT_SYMBOL(pcix_get_max_mmrbc);
 int pcix_get_mmrbc(struct pci_dev *dev)
 {
 	int ret, cap;
-	u32 cmd;
+	u16 cmd;
 
 	cap = pci_find_capability(dev, PCI_CAP_ID_PCIX);
 	if (!cap)
 		return -EINVAL;
 
-	ret = pci_read_config_dword(dev, cap + PCI_X_CMD, &cmd);
+	ret = pci_read_config_word(dev, cap + PCI_X_CMD, &cmd);
 	if (!ret)
 		ret = 512 << ((cmd & PCI_X_CMD_MAX_READ) >> 2);
 
@@ -2611,7 +2611,8 @@  EXPORT_SYMBOL(pcix_get_mmrbc);
 int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc)
 {
 	int cap, err = -EINVAL;
-	u32 stat, cmd, v, o;
+	u32 stat, v, o;
+	u16 cmd;
 
 	if (mmrbc < 512 || mmrbc > 4096 || !is_power_of_2(mmrbc))
 		goto out;
@@ -2629,7 +2630,7 @@  int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc)
 	if (v > (stat & PCI_X_STATUS_MAX_READ) >> 21)
 		return -E2BIG;
 
-	err = pci_read_config_dword(dev, cap + PCI_X_CMD, &cmd);
+	err = pci_read_config_word(dev, cap + PCI_X_CMD, &cmd);
 	if (err)
 		goto out;
 
@@ -2641,7 +2642,7 @@  int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc)
 
 		cmd &= ~PCI_X_CMD_MAX_READ;
 		cmd |= v << 2;
-		err = pci_write_config_dword(dev, cap + PCI_X_CMD, cmd);
+		err = pci_write_config_word(dev, cap + PCI_X_CMD, cmd);
 	}
 out:
 	return err;