From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-ww0-f44.google.com ([74.125.82.44]:33412 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753570Ab1IKXaV (ORCPT ); Sun, 11 Sep 2011 19:30:21 -0400 Received: by wwf22 with SMTP id 22so643879wwf.1 for ; Sun, 11 Sep 2011 16:30:20 -0700 (PDT) Subject: [PATCH 2/2] [ver 1.90] DM04/QQBOX Reduce USB buffer size. From: tvboxspy To: linux-media@vger.kernel.org Date: Mon, 12 Sep 2011 00:30:10 +0100 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Message-ID: <4e6d448b.d0c8e30a.4606.ffff8ac9@mx.google.com> Mime-Version: 1.0 Sender: linux-media-owner@vger.kernel.org List-ID: Reduced unused buffer size to 64. Signed-off-by: Malcolm Priestley --- drivers/media/dvb/dvb-usb/lmedm04.c | 16 ++++++++-------- 1 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/media/dvb/dvb-usb/lmedm04.c b/drivers/media/dvb/dvb-usb/lmedm04.c index 5fdeed1..b922824 100644 --- a/drivers/media/dvb/dvb-usb/lmedm04.c +++ b/drivers/media/dvb/dvb-usb/lmedm04.c @@ -162,7 +162,7 @@ static int lme2510_usb_talk(struct dvb_usb_device *d, int ret = 0; if (st->usb_buffer == NULL) { - st->usb_buffer = kmalloc(512, GFP_KERNEL); + st->usb_buffer = kmalloc(64, GFP_KERNEL); if (st->usb_buffer == NULL) { info("MEM Error no memory"); return -ENOMEM; @@ -175,8 +175,8 @@ static int lme2510_usb_talk(struct dvb_usb_device *d, if (ret < 0) return -EAGAIN; - /* the read/write capped at 512 */ - memcpy(buff, wbuf, (wlen > 512) ? 512 : wlen); + /* the read/write capped at 64 */ + memcpy(buff, wbuf, (wlen < 64) ? wlen : 64); ret |= usb_clear_halt(d->udev, usb_sndbulkpipe(d->udev, 0x01)); @@ -186,8 +186,8 @@ static int lme2510_usb_talk(struct dvb_usb_device *d, ret |= usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x01)); - ret |= lme2510_bulk_read(d->udev, buff, (rlen > 512) ? - 512 : rlen , 0x01); + ret |= lme2510_bulk_read(d->udev, buff, (rlen < 64) ? + rlen : 64 , 0x01); if (rlen > 0) memcpy(rbuf, buff, rlen); @@ -580,7 +580,7 @@ static int lme2510_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], { struct dvb_usb_device *d = i2c_get_adapdata(adap); struct lme2510_state *st = d->priv; - static u8 obuf[64], ibuf[512]; + static u8 obuf[64], ibuf[64]; int i, read, read_o; u16 len; u8 gate = st->i2c_gate; @@ -621,7 +621,7 @@ static int lme2510_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], len = msg[i].len+3; } - if (lme2510_msg(d, obuf, len, ibuf, 512) < 0) { + if (lme2510_msg(d, obuf, len, ibuf, 64) < 0) { deb_info(1, "i2c transfer failed."); return -EAGAIN; } @@ -1312,5 +1312,5 @@ module_exit(lme2510_module_exit); MODULE_AUTHOR("Malcolm Priestley "); MODULE_DESCRIPTION("LME2510(C) DVB-S USB2.0"); -MODULE_VERSION("1.89"); +MODULE_VERSION("1.90"); MODULE_LICENSE("GPL"); -- 1.7.5.4