From: Simon Arlott Date: Tue, 25 Sep 2007 19:20:10 +0000 (+0100) Subject: USB: cxacru: Use appropriate logging for errors X-Git-Tag: v2.6.24-rc1~1395^2~28 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=4ac0718e83821db53451614e098399004694aa81;p=linux-2.6-omap-h63xx.git USB: cxacru: Use appropriate logging for errors When an error occurs, existing logging uses dbg() so the cause of a problem is hard to determine. Error conditions shouldn't only be properly reported with debugging enabled. A side effect of this change is that when an uninitialised device is started, a log message similar to the following is sent: cxacru 5-2:1.0: receive of cm 0x90 failed (-104) This is normal - the device did not respond so firmware will be loaded. Signed-off-by: Simon Arlott Acked-by: Duncan Sands Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index a73e714288e..a51eeedc18d 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -482,7 +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; } @@ -493,8 +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; } @@ -510,27 +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; } @@ -538,12 +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; } @@ -582,14 +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; }