aboutsummaryrefslogtreecommitdiff
path: root/drivers/usb/misc
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@suse.de>2011-12-05 14:02:59 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2012-01-12 11:29:38 -0800
commitd6b3d54200b7b29473041fe8c2e2f5382f2f0c80 (patch)
treeb22b4d955e63d6f10bbc7a45f1b403359949b1e3 /drivers/usb/misc
parent30234e2694cbc1d6985cafc87db5cd4848493196 (diff)
downloadvexpress-lsk-d6b3d54200b7b29473041fe8c2e2f5382f2f0c80.tar.gz
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 <wmkoolen@cwi.nl> Tested-by: Wouter M. Koolen <wmkoolen@cwi.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/misc')
-rw-r--r--drivers/usb/misc/isight_firmware.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/misc/isight_firmware.c b/drivers/usb/misc/isight_firmware.c
index fe1d44319d0..8f725f65191 100644
--- a/drivers/usb/misc/isight_firmware.c
+++ b/drivers/usb/misc/isight_firmware.c
@@ -55,8 +55,9 @@ 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");
@@ -100,8 +101,9 @@ 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;