From: roel kluin Date: Sun, 27 Dec 2009 11:22:08 +0000 (+0000) Subject: usbnet: test off by one X-Git-Tag: MMI-PSA29.97-13-9~24944^2~146 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c064efca9211d12bb9e6de8718fc39884eb883f2;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git usbnet: test off by one With `while (i++ < MII_TIMEOUT)' i reaches MII_TIMEOUT + 1 after the loop This is probably unlikely a problem in practice. Signed-off-by: Roel Kluin Signed-off-by: David S. Miller --- diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c index f14d225404da..fd19db0d2504 100644 --- a/drivers/net/usb/rtl8150.c +++ b/drivers/net/usb/rtl8150.c @@ -270,7 +270,7 @@ static int read_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 * reg) get_registers(dev, PHYCNT, 1, data); } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT)); - if (i < MII_TIMEOUT) { + if (i <= MII_TIMEOUT) { get_registers(dev, PHYDAT, 2, data); *reg = data[0] | (data[1] << 8); return 0; @@ -295,7 +295,7 @@ static int write_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 reg) get_registers(dev, PHYCNT, 1, data); } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT)); - if (i < MII_TIMEOUT) + if (i <= MII_TIMEOUT) return 0; else return 1;