From a215aa7b9ab3759c047201199fba64d3042d7f13 Mon Sep 17 00:00:00 2001 From: Jeremy Erickson Date: Fri, 18 Apr 2014 17:06:00 -0400 Subject: Update 2.6.36 to 2.6.36.4 --- drivers/isdn/gigaset/bas-gigaset.c | 89 +++++++++++++++----------------------- drivers/isdn/gigaset/isocdata.c | 8 ++-- 2 files changed, 41 insertions(+), 56 deletions(-) (limited to 'drivers/isdn/gigaset') diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index 707d9c94cf9e..131976d880d0 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -438,23 +438,27 @@ static void cmd_in_timeout(unsigned long data) return; } - if (ucs->retry_cmd_in++ < BAS_RETRY) { - dev_notice(cs->dev, "control read: timeout, retry %d\n", - ucs->retry_cmd_in); - rc = atread_submit(cs, BAS_TIMEOUT); - if (rc >= 0 || rc == -ENODEV) - /* resubmitted or disconnected */ - /* - bypass regular exit block */ - return; - } else { + if (ucs->retry_cmd_in++ >= BAS_RETRY) { dev_err(cs->dev, "control read: timeout, giving up after %d tries\n", ucs->retry_cmd_in); + kfree(ucs->rcvbuf); + ucs->rcvbuf = NULL; + ucs->rcvbuf_size = 0; + error_reset(cs); + return; + } + + gig_dbg(DEBUG_USBREQ, "%s: timeout, retry %d", + __func__, ucs->retry_cmd_in); + rc = atread_submit(cs, BAS_TIMEOUT); + if (rc < 0) { + kfree(ucs->rcvbuf); + ucs->rcvbuf = NULL; + ucs->rcvbuf_size = 0; + if (rc != -ENODEV) + error_reset(cs); } - kfree(ucs->rcvbuf); - ucs->rcvbuf = NULL; - ucs->rcvbuf_size = 0; - error_reset(cs); } /* read_ctrl_callback @@ -470,18 +474,11 @@ static void read_ctrl_callback(struct urb *urb) struct cardstate *cs = inbuf->cs; struct bas_cardstate *ucs = cs->hw.bas; int status = urb->status; - int have_data = 0; unsigned numbytes; int rc; update_basstate(ucs, 0, BS_ATRDPEND); wake_up(&ucs->waitqueue); - - if (!ucs->rcvbuf_size) { - dev_warn(cs->dev, "%s: no receive in progress\n", __func__); - return; - } - del_timer(&ucs->timer_cmd_in); switch (status) { @@ -495,19 +492,10 @@ static void read_ctrl_callback(struct urb *urb) numbytes = ucs->rcvbuf_size; } - /* copy received bytes to inbuf */ - have_data = gigaset_fill_inbuf(inbuf, ucs->rcvbuf, numbytes); - - if (unlikely(numbytes < ucs->rcvbuf_size)) { - /* incomplete - resubmit for remaining bytes */ - ucs->rcvbuf_size -= numbytes; - ucs->retry_cmd_in = 0; - rc = atread_submit(cs, BAS_TIMEOUT); - if (rc >= 0 || rc == -ENODEV) - /* resubmitted or disconnected */ - /* - bypass regular exit block */ - return; - error_reset(cs); + /* copy received bytes to inbuf, notify event layer */ + if (gigaset_fill_inbuf(inbuf, ucs->rcvbuf, numbytes)) { + gig_dbg(DEBUG_INTR, "%s-->BH", __func__); + gigaset_schedule_event(cs); } break; @@ -516,37 +504,32 @@ static void read_ctrl_callback(struct urb *urb) case -EINPROGRESS: /* pending */ case -ENODEV: /* device removed */ case -ESHUTDOWN: /* device shut down */ - /* no action necessary */ + /* no further action necessary */ gig_dbg(DEBUG_USBREQ, "%s: %s", __func__, get_usb_statmsg(status)); break; - default: /* severe trouble */ - dev_warn(cs->dev, "control read: %s\n", - get_usb_statmsg(status)); + default: /* other errors: retry */ if (ucs->retry_cmd_in++ < BAS_RETRY) { - dev_notice(cs->dev, "control read: retry %d\n", - ucs->retry_cmd_in); + gig_dbg(DEBUG_USBREQ, "%s: %s, retry %d", __func__, + get_usb_statmsg(status), ucs->retry_cmd_in); rc = atread_submit(cs, BAS_TIMEOUT); - if (rc >= 0 || rc == -ENODEV) - /* resubmitted or disconnected */ - /* - bypass regular exit block */ + if (rc >= 0) + /* successfully resubmitted, skip freeing */ return; - } else { - dev_err(cs->dev, - "control read: giving up after %d tries\n", - ucs->retry_cmd_in); + if (rc == -ENODEV) + /* disconnect, no further action necessary */ + break; } + dev_err(cs->dev, "control read: %s, giving up after %d tries\n", + get_usb_statmsg(status), ucs->retry_cmd_in); error_reset(cs); } + /* read finished, free buffer */ kfree(ucs->rcvbuf); ucs->rcvbuf = NULL; ucs->rcvbuf_size = 0; - if (have_data) { - gig_dbg(DEBUG_INTR, "%s-->BH", __func__); - gigaset_schedule_event(cs); - } } /* atread_submit @@ -1598,13 +1581,13 @@ static int gigaset_init_bchannel(struct bc_state *bcs) ret = starturbs(bcs); if (ret < 0) { + spin_unlock_irqrestore(&cs->lock, flags); dev_err(cs->dev, "could not start isochronous I/O for channel B%d: %s\n", bcs->channel + 1, ret == -EFAULT ? "null URB" : get_usb_rcmsg(ret)); if (ret != -ENODEV) error_hangup(bcs); - spin_unlock_irqrestore(&cs->lock, flags); return ret; } @@ -1614,11 +1597,11 @@ static int gigaset_init_bchannel(struct bc_state *bcs) dev_err(cs->dev, "could not open channel B%d\n", bcs->channel + 1); stopurbs(bcs->hw.bas); - if (ret != -ENODEV) - error_hangup(bcs); } spin_unlock_irqrestore(&cs->lock, flags); + if (ret < 0 && ret != -ENODEV) + error_hangup(bcs); return ret; } diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c index 2dfd346fc889..f39ccdf87a17 100644 --- a/drivers/isdn/gigaset/isocdata.c +++ b/drivers/isdn/gigaset/isocdata.c @@ -842,13 +842,14 @@ static inline void trans_receive(unsigned char *src, unsigned count, if (unlikely(bcs->ignore)) { bcs->ignore--; - hdlc_flush(bcs); return; } skb = bcs->rx_skb; - if (skb == NULL) + if (skb == NULL) { skb = gigaset_new_rx_skb(bcs); - bcs->hw.bas->goodbytes += skb->len; + if (skb == NULL) + return; + } dobytes = bcs->rx_bufsize - skb->len; while (count > 0) { dst = skb_put(skb, count < dobytes ? count : dobytes); @@ -860,6 +861,7 @@ static inline void trans_receive(unsigned char *src, unsigned count, if (dobytes == 0) { dump_bytes(DEBUG_STREAM_DUMP, "rcv data", skb->data, skb->len); + bcs->hw.bas->goodbytes += skb->len; gigaset_skb_rcvd(bcs, skb); skb = gigaset_new_rx_skb(bcs); if (skb == NULL) -- cgit v1.2.2