linux-kernel - [PATCH 1/1] USB: FHCI: avoid redundant condition

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <1462745731-4864-1-git-send-email-xypron.glpk@gmx.de>
Date:	Mon,  9 May 2016 00:15:31 +0200
From:	Heinrich Schuchardt <xypron.glpk@....de>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Scott Wood <scottwood@...escale.com>,
	Zhao Qiang <qiang.zhao@...escale.com>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Heinrich Schuchardt <xypron.glpk@....de>
Subject: [PATCH 1/1] USB: FHCI: avoid redundant condition

The right part of the following or expression is only evaluated if
td is nonzero.
!td || (td && td.status == USB_TD_INPROGRESS)
So no need to check td again.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@....de>
---
 drivers/usb/host/fhci-sched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/fhci-sched.c b/drivers/usb/host/fhci-sched.c
index a9609a3..2f162fa 100644
--- a/drivers/usb/host/fhci-sched.c
+++ b/drivers/usb/host/fhci-sched.c
@@ -288,7 +288,7 @@ static int scan_ed_list(struct fhci_usb *usb,
 	list_for_each_entry(ed, list, node) {
 		td = ed->td_head;
 
-		if (!td || (td && td->status == USB_TD_INPROGRESS))
+		if (!td || td->status == USB_TD_INPROGRESS)
 			continue;
 
 		if (ed->state != FHCI_ED_OPER) {
-- 
2.1.4