[PATCH] ata: pata_hpt37x: fix PCI clock detection

[Sergey Shtylyov <s.shtylyov@xxxxxx>]

The f_CNT register (at the PCI config. address 0x78) is 16-bit, not
8-bit! The bug was there from the very start... :-(

Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
Fixes: 669a5db411d8 ("[libata] Add a bunch of PATA drivers.")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>

diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 7abc7e04f656..1baaca7b72ed 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -950,14 +950,14 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 
 	if ((freq >> 12) != 0xABCDE) {
 		int i;
-		u8 sr;
+		u16 sr;
 		u32 total = 0;
 
 		dev_warn(&dev->dev, "BIOS has not set timing clocks\n");
 
 		/* This is the process the HPT371 BIOS is reported to use */
 		for (i = 0; i < 128; i++) {
-			pci_read_config_byte(dev, 0x78, &sr);
+			pci_read_config_word(dev, 0x78, &sr);
 			total += sr & 0x1FF;
 			udelay(15);
 		}