diff options
Diffstat (limited to 'drivers/isdn/gigaset/bas-gigaset.c')
| -rw-r--r-- | drivers/isdn/gigaset/bas-gigaset.c | 48 |
1 files changed, 22 insertions, 26 deletions
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index fa37db68c962..f86ed6af3aa2 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -367,7 +367,7 @@ static void cmd_in_timeout(unsigned long data) unsigned long flags; spin_lock_irqsave(&cs->lock, flags); - if (unlikely(!atomic_read(&cs->connected))) { + if (unlikely(!cs->connected)) { gig_dbg(DEBUG_USBREQ, "%s: disconnected", __func__); spin_unlock_irqrestore(&cs->lock, flags); return; @@ -475,11 +475,6 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) unsigned l; int channel; - if (unlikely(!atomic_read(&cs->connected))) { - warn("%s: disconnected", __func__); - return; - } - switch (urb->status) { case 0: /* success */ break; @@ -603,7 +598,9 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs) check_pending(ucs); resubmit: - status = usb_submit_urb(urb, SLAB_ATOMIC); + spin_lock_irqsave(&cs->lock, flags); + status = cs->connected ? usb_submit_urb(urb, SLAB_ATOMIC) : -ENODEV; + spin_unlock_irqrestore(&cs->lock, flags); if (unlikely(status)) { dev_err(cs->dev, "could not resubmit interrupt URB: %s\n", get_usb_statmsg(status)); @@ -628,7 +625,7 @@ static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs) unsigned long flags; spin_lock_irqsave(&cs->lock, flags); - if (unlikely(!atomic_read(&cs->connected))) { + if (unlikely(!cs->connected)) { warn("%s: disconnected", __func__); spin_unlock_irqrestore(&cs->lock, flags); return; @@ -949,6 +946,7 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) struct bas_bc_state *ubc = ucx->bcs->hw.bas; struct usb_iso_packet_descriptor *ifd; int corrbytes, nframe, rc; + unsigned long flags; /* urb->dev is clobbered by USB subsystem */ urb->dev = ucx->bcs->cs->hw.bas->udev; @@ -995,7 +993,11 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) ifd->actual_length = 0; } if ((urb->number_of_packets = nframe) > 0) { - if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0) { + spin_lock_irqsave(&ucx->bcs->cs->lock, flags); + rc = ucx->bcs->cs->connected ? usb_submit_urb(urb, SLAB_ATOMIC) : -ENODEV; + spin_unlock_irqrestore(&ucx->bcs->cs->lock, flags); + + if (rc) { dev_err(ucx->bcs->cs->dev, "could not submit isochronous write URB: %s\n", get_usb_statmsg(rc)); @@ -1029,11 +1031,6 @@ static void write_iso_tasklet(unsigned long data) /* loop while completed URBs arrive in time */ for (;;) { - if (unlikely(!atomic_read(&cs->connected))) { - warn("%s: disconnected", __func__); - return; - } - if (unlikely(!(atomic_read(&ubc->running)))) { gig_dbg(DEBUG_ISO, "%s: not running", __func__); return; @@ -1190,11 +1187,6 @@ static void read_iso_tasklet(unsigned long data) /* loop while more completed URBs arrive in the meantime */ for (;;) { - if (unlikely(!atomic_read(&cs->connected))) { - warn("%s: disconnected", __func__); - return; - } - /* retrieve URB */ spin_lock_irqsave(&ubc->isoinlock, flags); if (!(urb = ubc->isoindone)) { @@ -1298,7 +1290,10 @@ static void read_iso_tasklet(unsigned long data) urb->dev = bcs->cs->hw.bas->udev; urb->transfer_flags = URB_ISO_ASAP; urb->number_of_packets = BAS_NUMFRAMES; - if ((rc = usb_submit_urb(urb, SLAB_ATOMIC)) != 0) { + spin_lock_irqsave(&cs->lock, flags); + rc = cs->connected ? usb_submit_urb(urb, SLAB_ATOMIC) : -ENODEV; + spin_unlock_irqrestore(&cs->lock, flags); + if (rc) { dev_err(cs->dev, "could not resubmit isochronous read URB: %s\n", get_usb_statmsg(rc)); @@ -1639,6 +1634,7 @@ static void atrdy_timeout(unsigned long data) static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len) { struct bas_cardstate *ucs = cs->hw.bas; + unsigned long flags; int ret; gig_dbg(DEBUG_USBREQ, "-------> HD_WRITE_ATMESSAGE (%d)", len); @@ -1659,7 +1655,11 @@ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len) (unsigned char*) &ucs->dr_cmd_out, buf, len, write_command_callback, cs); - if ((ret = usb_submit_urb(ucs->urb_cmd_out, SLAB_ATOMIC)) != 0) { + spin_lock_irqsave(&cs->lock, flags); + ret = cs->connected ? usb_submit_urb(ucs->urb_cmd_out, SLAB_ATOMIC) : -ENODEV; + spin_unlock_irqrestore(&cs->lock, flags); + + if (ret) { dev_err(cs->dev, "could not submit HD_WRITE_ATMESSAGE: %s\n", get_usb_statmsg(ret)); return ret; @@ -1758,11 +1758,6 @@ static int gigaset_write_cmd(struct cardstate *cs, DEBUG_TRANSCMD : DEBUG_LOCKCMD, "CMD Transmit", len, buf); - if (unlikely(!atomic_read(&cs->connected))) { - err("%s: disconnected", __func__); - return -ENODEV; - } - if (len <= 0) return 0; /* nothing to do */ @@ -2186,6 +2181,7 @@ static int gigaset_probe(struct usb_interface *interface, error: freeurbs(cs); + usb_set_intfdata(interface, NULL); gigaset_unassign(cs); return -ENODEV; } |