unsigned long ipc_count = 0;
struct dentry *dentry;
int err;
- size_t size;
char *string;
int ret;
+ if (*ppos != 0)
+ return -EINVAL;
+
string = kzalloc(count + 1, GFP_KERNEL);
if (!string)
return -ENOMEM;
- size = simple_write_to_buffer(string, count, ppos, buffer, count);
+ if (copy_from_user(string, buffer, count)) {
+ ret = -EFAULT;
+ goto out;
+ }
/*
* write op is only supported for ipc_flood_count or
/* limit max duration/ipc count for flood test */
if (flood_duration_test) {
if (!ipc_duration_ms) {
- ret = size;
+ ret = count;
goto out;
}
ipc_duration_ms = MAX_IPC_FLOOD_DURATION_MS;
} else {
if (!ipc_count) {
- ret = size;
+ ret = count;
goto out;
}
if (err < 0)
dev_err_ratelimited(dev, "debugfs write failed to idle %d\n", err);
- /* return size if test is successful */
+ /* return count if test is successful */
if (ret >= 0)
- ret = size;
+ ret = count;
out:
kfree(string);
return ret;