From: Roel Kluin <roel.kluin@gmail.com>
Date: Sat, 31 Jan 2009 11:37:04 +0000 (+0100)
Subject: USB: count reaches -1, tested 0
X-Git-Tag: accepted/tizen/common/20141203.182822~17080^2~75
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6e14bda1b18b2e3c16258427fc43ceb43e1bc1d5;p=platform%2Fkernel%2Flinux-arm64.git

USB: count reaches -1, tested 0

With a postfix decrement count will reach -1 rather than 0,
so the warning will not be issued.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 75b6984..033c284 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -234,7 +234,7 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev)
 	 */
 	hcc_params = readl(base + EHCI_HCC_PARAMS);
 	offset = (hcc_params >> 8) & 0xff;
-	while (offset && count--) {
+	while (offset && --count) {
 		u32		cap;
 		int		msec;