video: fbdev: udlfb: Fix buffer on stack
Allocate buffers on HEAP instead of STACK for local array that is to be sent using usb_control_msg(). Signed-off-by: Maksim Salau <maksim.salau@gmail.com> Cc: Bernie Thompson <bernie@plugable.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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@ -1487,15 +1487,25 @@ static struct device_attribute fb_device_attrs[] = {
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static int dlfb_select_std_channel(struct dlfb_data *dev)
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{
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int ret;
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u8 set_def_chn[] = { 0x57, 0xCD, 0xDC, 0xA7,
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void *buf;
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static const u8 set_def_chn[] = {
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0x57, 0xCD, 0xDC, 0xA7,
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0x1C, 0x88, 0x5E, 0x15,
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0x60, 0xFE, 0xC6, 0x97,
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0x16, 0x3D, 0x47, 0xF2 };
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buf = kmemdup(set_def_chn, sizeof(set_def_chn), GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
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NR_USB_REQUEST_CHANNEL,
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(USB_DIR_OUT | USB_TYPE_VENDOR), 0, 0,
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set_def_chn, sizeof(set_def_chn), USB_CTRL_SET_TIMEOUT);
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buf, sizeof(set_def_chn), USB_CTRL_SET_TIMEOUT);
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kfree(buf);
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return ret;
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}
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