Kaynağa Gözat

hpt366: write the full 4 bytes of ROM address, not just low 1 byte

This is one heck of a confused driver.  It uses a byte write to a dword
register to enable a ROM resource that it doesn't even seem to be using.

"Lost and wandering in the desert of confusion"

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Linus Torvalds 19 yıl önce
ebeveyn
işleme
9ec4ff421f
1 değiştirilmiş dosya ile 6 ekleme ve 2 silme
  1. 6 2
      drivers/ide/pci/hpt366.c

+ 6 - 2
drivers/ide/pci/hpt366.c

@@ -1334,9 +1334,13 @@ static int __devinit init_hpt366(struct pci_dev *dev)
 static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name)
 {
 	int ret = 0;
-	/* FIXME: Not portable */
+
+	/*
+	 * FIXME: Not portable. Also, why do we enable the ROM in the first place?
+	 * We don't seem to be using it.
+	 */
 	if (dev->resource[PCI_ROM_RESOURCE].start)
-		pci_write_config_byte(dev, PCI_ROM_ADDRESS,
+		pci_write_config_dword(dev, PCI_ROM_ADDRESS,
 			dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
 
 	pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));