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Diffstat (limited to 'sound/soc/sof/sof-client-ipc-flood-test.c')
-rw-r--r--sound/soc/sof/sof-client-ipc-flood-test.c21
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);