[PATCH] ata: pata_hpt3x2n: prevent potential forever loop in hpt3xn_calibrate_dpll()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This code accidentally reuses "tries" as the iterator for both the inside
and outside loops.  It means that the potentially the "tries" could be
reset to 0x1000 and never reach 0x5000.

Fixes: 669a5db411d8 ("[libata] Add a bunch of PATA drivers.")
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
---
 drivers/ata/pata_hpt3x2n.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c
index 617c95522f43..447dc287a2d4 100644
--- a/drivers/ata/pata_hpt3x2n.c
+++ b/drivers/ata/pata_hpt3x2n.c
@@ -380,14 +380,14 @@ static int hpt3xn_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




[Index of Archives]     [Linux Filesystems]     [Linux SCSI]     [Linux RAID]     [Git]     [Kernel Newbies]     [Linux Newbie]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Samba]     [Device Mapper]

  Powered by Linux