Hi Russ,
I found another thing while testing this...
On 06/11/2020 02.09, Russ Weight wrote:
<snip>
+static ssize_t filename_store(struct device *dev, struct device_attribute
*attr,
+ const char *buf, size_t count)
+{
+ struct fpga_sec_mgr *smgr = to_sec_mgr(dev);
+ int ret = count;
+
+ if (count == 0 || count >= PATH_MAX)
+ return -EINVAL;
+
+ mutex_lock(&smgr->lock);
+ if (smgr->driver_unload || smgr->progress != FPGA_SEC_PROG_IDLE) {
+ ret = -EBUSY;
+ goto unlock_exit;
+ }
+
+ smgr->filename = kstrndup(buf, count - 1, GFP_KERNEL);
The `count - 1` is meant to remove a trailing newline, but opae-sdk
writes the filename without newline, so better do it conditionally...
+ if (!smgr->filename) {
+ ret = -ENOMEM;
+ goto unlock_exit;
+ }
+
+ smgr->err_code = FPGA_SEC_ERR_NONE;
+ smgr->progress = FPGA_SEC_PROG_READING;
+ reinit_completion(&smgr->update_done);
+ schedule_work(&smgr->work);
+
+unlock_exit:
+ mutex_unlock(&smgr->lock);
+ return ret;
+}
+static DEVICE_ATTR_WO(filename);
+
+static struct attribute *sec_mgr_update_attrs[] = {
+ &dev_attr_filename.attr,
+ NULL,
+};
Thanks,
Martin
