linux-kernel - [PATCH] xhci: Redundant check for

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Message-ID: <CA+OjSzyMGBsjCmwAgrFDkX3uphD9ya8DBGQw1nVktoKX=wpDHQ@mail.gmail.com>
Date:	Mon, 22 Aug 2011 21:05:20 +0530
From:	sifram rajas <sifram.rajas@...il.com>
To:	sarah.a.sharp@...el.com, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] xhci: Redundant check for

Hi Sarah,

This patch is for linux-3.0.3.

In the xhci_check_args() function in xhci.c, there is a redundant
check for xhci->devs.

This is redundant because the struct xhci_hcd->devs is actually
defined as a static array
of pointers and is not a pointer to a pointer.

Signed-off-by: Sifram Rajas <sifram.rajas@...il.com>
---
drivers/usb/host/xhci.c |   3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
--- a/drivers/usb/host/xhci.c	2011-08-17 23:27:16.000000000 +0530
+++ b/drivers/usb/host/xhci.c	2011-08-22 20:43:34.250000000 +0530
@@ -945,8 +945,7 @@ static int xhci_check_args(struct usb_hc
 		return -ENODEV;

 	if (check_virt_dev) {
-		if (!udev->slot_id || !xhci->devs
-			|| !xhci->devs[udev->slot_id]) {
+		if (!udev->slot_id || !xhci->devs[udev->slot_id]) {
 			printk(KERN_DEBUG "xHCI %s called with unaddressed "
 						"device\n", func);
 			return -EINVAL;

Thanks,
Sifram Rajas.
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