From a6b6470938e58aff69cdbf651e8476e3a26e7792 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 17 Jul 2008 23:26:40 -0300 Subject: backport commit e62f89f2aebd57f48687f139c20cf6375693b622 From: Mauro Carvalho Chehab Author: David Woodhouse cxusb: treat firmware data as const ...which means allocating our own copy when we want to modify it. (stupid thinko fixed by mkrufky) kernel-sync: Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Mauro Carvalho Chehab --- linux/drivers/media/dvb/dvb-usb/cxusb.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) (limited to 'linux/drivers/media') diff --git a/linux/drivers/media/dvb/dvb-usb/cxusb.c b/linux/drivers/media/dvb/dvb-usb/cxusb.c index 9a3e97247..578afce68 100644 --- a/linux/drivers/media/dvb/dvb-usb/cxusb.c +++ b/linux/drivers/media/dvb/dvb-usb/cxusb.c @@ -24,6 +24,7 @@ * see Documentation/dvb/README.dvb-usb for more information */ #include +#include #include "cxusb.h" @@ -791,12 +792,26 @@ static int bluebird_patch_dvico_firmware_download(struct usb_device *udev, if (fw->data[idoff] == (USB_VID_DVICO & 0xff) && fw->data[idoff + 1] == USB_VID_DVICO >> 8) { - fw->data[idoff + 2] = + struct firmware new_fw; + u8 *new_fw_data = vmalloc(fw->size); + int ret; + + if (!new_fw_data) + return -ENOMEM; + + memcpy(new_fw_data, fw->data, fw->size); + new_fw.size = fw->size; + new_fw.data = new_fw_data; + + new_fw_data[idoff + 2] = le16_to_cpu(udev->descriptor.idProduct) + 1; - fw->data[idoff + 3] = + new_fw_data[idoff + 3] = le16_to_cpu(udev->descriptor.idProduct) >> 8; - return usb_cypress_load_firmware(udev, fw, CYPRESS_FX2); + ret = usb_cypress_load_firmware(udev, &new_fw, + CYPRESS_FX2); + vfree(new_fw_data); + return ret; } } -- cgit v1.2.3