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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2007-10-12 21:27:47 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2007-10-12 21:27:47 -0400
commitb981d8b3f5e008ff10d993be633ad00564fc22cd (patch)
treee292dc07b22308912cf6a58354a608b9e5e8e1fd /drivers/usb/atm/cxacru.c
parentb11d2127c4893a7315d1e16273bc8560049fa3ca (diff)
parent2b9e0aae1d50e880c58d46788e5e3ebd89d75d62 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: drivers/macintosh/adbhid.c
Diffstat (limited to 'drivers/usb/atm/cxacru.c')
-rw-r--r--drivers/usb/atm/cxacru.c47
1 files changed, 29 insertions, 18 deletions
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index 1bc884051e0..a51eeedc18d 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -456,7 +456,6 @@ static int cxacru_start_wait_urb(struct urb *urb, struct completion *done,
int* actual_length)
{
struct timer_list timer;
- int status;
init_timer(&timer);
timer.expires = jiffies + msecs_to_jiffies(CMD_TIMEOUT);
@@ -464,12 +463,11 @@ static int cxacru_start_wait_urb(struct urb *urb, struct completion *done,
timer.function = cxacru_timeout_kill;
add_timer(&timer);
wait_for_completion(done);
- status = urb->status;
del_timer_sync(&timer);
if (actual_length)
*actual_length = urb->actual_length;
- return status;
+ return urb->status; /* must read status after completion */
}
static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
@@ -484,7 +482,9 @@ static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
int rbuflen = ((rsize - 1) / stride + 1) * CMD_PACKET_SIZE;
if (wbuflen > PAGE_SIZE || rbuflen > PAGE_SIZE) {
- dbg("too big transfer requested");
+ if (printk_ratelimit())
+ usb_err(instance->usbatm, "requested transfer size too large (%d, %d)\n",
+ wbuflen, rbuflen);
ret = -ENOMEM;
goto fail;
}
@@ -495,8 +495,9 @@ static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
init_completion(&instance->rcv_done);
ret = usb_submit_urb(instance->rcv_urb, GFP_KERNEL);
if (ret < 0) {
- dbg("submitting read urb for cm %#x failed", cm);
- ret = ret;
+ if (printk_ratelimit())
+ usb_err(instance->usbatm, "submit of read urb for cm %#x failed (%d)\n",
+ cm, ret);
goto fail;
}
@@ -512,27 +513,29 @@ static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
init_completion(&instance->snd_done);
ret = usb_submit_urb(instance->snd_urb, GFP_KERNEL);
if (ret < 0) {
- dbg("submitting write urb for cm %#x failed", cm);
- ret = ret;
+ if (printk_ratelimit())
+ usb_err(instance->usbatm, "submit of write urb for cm %#x failed (%d)\n",
+ cm, ret);
goto fail;
}
ret = cxacru_start_wait_urb(instance->snd_urb, &instance->snd_done, NULL);
if (ret < 0) {
- dbg("sending cm %#x failed", cm);
- ret = ret;
+ if (printk_ratelimit())
+ usb_err(instance->usbatm, "send of cm %#x failed (%d)\n", cm, ret);
goto fail;
}
ret = cxacru_start_wait_urb(instance->rcv_urb, &instance->rcv_done, &actlen);
if (ret < 0) {
- dbg("receiving cm %#x failed", cm);
- ret = ret;
+ if (printk_ratelimit())
+ usb_err(instance->usbatm, "receive of cm %#x failed (%d)\n", cm, ret);
goto fail;
}
if (actlen % CMD_PACKET_SIZE || !actlen) {
- dbg("response is not a positive multiple of %d: %#x",
- CMD_PACKET_SIZE, actlen);
+ if (printk_ratelimit())
+ usb_err(instance->usbatm, "invalid response length to cm %#x: %d\n",
+ cm, actlen);
ret = -EIO;
goto fail;
}
@@ -540,12 +543,16 @@ static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
/* check the return status and copy the data to the output buffer, if needed */
for (offb = offd = 0; offd < rsize && offb < actlen; offb += CMD_PACKET_SIZE) {
if (rbuf[offb] != cm) {
- dbg("wrong cm %#x in response", rbuf[offb]);
+ if (printk_ratelimit())
+ usb_err(instance->usbatm, "wrong cm %#x in response to cm %#x\n",
+ rbuf[offb], cm);
ret = -EIO;
goto fail;
}
if (rbuf[offb + 1] != CM_STATUS_SUCCESS) {
- dbg("response failed: %#x", rbuf[offb + 1]);
+ if (printk_ratelimit())
+ usb_err(instance->usbatm, "response to cm %#x failed: %#x\n",
+ cm, rbuf[offb + 1]);
ret = -EIO;
goto fail;
}
@@ -584,14 +591,18 @@ static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_requ
for (offb = 0; offb < len; ) {
int l = le32_to_cpu(buf[offb++]);
if (l > stride || l > (len - offb) / 2) {
- dbg("wrong data length %#x in response", l);
+ if (printk_ratelimit())
+ usb_err(instance->usbatm, "invalid data length from cm %#x: %d\n",
+ cm, l);
ret = -EIO;
goto cleanup;
}
while (l--) {
offd = le32_to_cpu(buf[offb++]);
if (offd >= size) {
- dbg("wrong index %#x in response", offd);
+ if (printk_ratelimit())
+ usb_err(instance->usbatm, "wrong index #%x in response to cm #%x\n",
+ offd, cm);
ret = -EIO;
goto cleanup;
}