From e8afc51e8169043a511040fd06b71f4598a1bf41 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 5 Dec 2011 14:02:59 -0800 Subject: USB: isight: fix kernel bug when loading firmware commit 59bf5cf94f0fa3b08fb1258b52649077b7d0914d upstream. We were sending data on the stack when uploading firmware, which causes some machines fits, and is not allowed. Fix this by using the buffer we already had around for this very purpose. Reported-by: Wouter M. Koolen Tested-by: Wouter M. Koolen Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/isight_firmware.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/usb/misc/isight_firmware.c b/drivers/usb/misc/isight_firmware.c index b897f6554ec..6199f12d014 100644 --- a/drivers/usb/misc/isight_firmware.c +++ b/drivers/usb/misc/isight_firmware.c @@ -54,8 +54,9 @@ static int isight_firmware_load(struct usb_interface *intf, ptr = firmware->data; + buf[0] = 0x01; if (usb_control_msg - (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, "\1", 1, + (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, buf, 1, 300) != 1) { printk(KERN_ERR "Failed to initialise isight firmware loader\n"); @@ -99,8 +100,9 @@ static int isight_firmware_load(struct usb_interface *intf, } } + buf[0] = 0x00; if (usb_control_msg - (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, "\0", 1, + (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, buf, 1, 300) != 1) { printk(KERN_ERR "isight firmware loading completion failed\n"); ret = -ENODEV; -- cgit v1.2.3