[PATCH] ata: pata_hpt37x: fix potential forever loop

[Dan Carpenter <error27@gmail.com>]

This code accidentally reuses the "tries" iterator for both the inside
and outside loops.  It could result in a forever loop if the "tries"
variable gets reset to 0x1000 and never reaches 0x5000.

Fixes: 669a5db411d8 ("[libata] Add a bunch of PATA drivers.")
Signed-off-by: Dan Carpenter <error27@gmail.com>
---
 drivers/ata/pata_hpt37x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index ce3c5eaa7e76..35be9a095b18 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -621,14 +621,14 @@ static int hpt37x_calibrate_dpll(struct pci_dev *dev)
 {
 	u8 reg5b;
 	u32 reg5c;
-	int tries;
+	int tries, tries2;
 
 	for (tries = 0; tries < 0x5000; tries++) {
 		udelay(50);
 		pci_read_config_byte(dev, 0x5b, &reg5b);
 		if (reg5b & 0x80) {
 			/* See if it stays set */
-			for (tries = 0; tries < 0x1000; tries++) {
+			for (tries2 = 0; tries2 < 0x1000; tries2++) {
 				pci_read_config_byte(dev, 0x5b, &reg5b);
 				/* Failed ? */
 				if ((reg5b & 0x80) == 0)
-- 
2.35.1