X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Fipr.c;h=de62f4dfeb0e067415a504873557432b99ebdca6;hb=d777aaf386ba71d6fbe803c015330a766cad53d8;hp=d30eb7ba018e6dde266ac53253b95c8687dde8e8;hpb=3ba7f18cd9d974a5b1e75a68a4f0a50f1df8585e;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index d30eb7ba018..de62f4dfeb0 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -2456,20 +2456,14 @@ static ssize_t ipr_read_trace(struct kobject *kobj,
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
 	unsigned long lock_flags = 0;
-	int size = IPR_TRACE_SIZE;
-	char *src = (char *)ioa_cfg->trace;
-
-	if (off > size)
-		return 0;
-	if (off + count > size) {
-		size -= off;
-		count = size;
-	}
+	ssize_t ret;
 
 	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
-	memcpy(buf, &src[off], count);
+	ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
+				IPR_TRACE_SIZE);
 	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-	return count;
+
+	return ret;
 }
 
 static struct bin_attribute ipr_trace_attr = {