diff options
Diffstat (limited to 'sound/soc/sof/sof-client-ipc-flood-test.c')
| -rw-r--r-- | sound/soc/sof/sof-client-ipc-flood-test.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/sound/soc/sof/sof-client-ipc-flood-test.c b/sound/soc/sof/sof-client-ipc-flood-test.c index c0d6723aed..e7d2001140 100644 --- a/sound/soc/sof/sof-client-ipc-flood-test.c +++ b/sound/soc/sof/sof-client-ipc-flood-test.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only // -// Copyright(c) 2022 Intel Corporation. All rights reserved. +// Copyright(c) 2022 Intel Corporation // // Authors: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> // Peter Ujfalusi <peter.ujfalusi@linux.intel.com> @@ -160,15 +160,20 @@ static ssize_t sof_ipc_flood_dfs_write(struct file *file, const char __user *buf 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 @@ -198,7 +203,7 @@ static ssize_t sof_ipc_flood_dfs_write(struct file *file, const char __user *buf /* limit max duration/ipc count for flood test */ if (flood_duration_test) { if (!ipc_duration_ms) { - ret = size; + ret = count; goto out; } @@ -207,7 +212,7 @@ static ssize_t sof_ipc_flood_dfs_write(struct file *file, const char __user *buf ipc_duration_ms = MAX_IPC_FLOOD_DURATION_MS; } else { if (!ipc_count) { - ret = size; + ret = count; goto out; } @@ -231,9 +236,9 @@ static ssize_t sof_ipc_flood_dfs_write(struct file *file, const char __user *buf 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; @@ -389,6 +394,6 @@ static struct auxiliary_driver sof_ipc_flood_client_drv = { module_auxiliary_driver(sof_ipc_flood_client_drv); -MODULE_DESCRIPTION("SOF IPC Flood Test Client Driver"); MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("SOF IPC Flood Test Client Driver"); MODULE_IMPORT_NS(SND_SOC_SOF_CLIENT); |