Commit c56f9ecb authored by Basavaraj Natikar's avatar Basavaraj Natikar Committed by Jiri Kosina

HID: amd_sfh: Switch to device-managed dmam_alloc_coherent()

Using the device-managed version allows to simplify clean-up in probe()
error path.

Additionally, this device-managed ensures proper cleanup, which helps to
resolve memory errors, page faults, btrfs going read-only, and btrfs
disk corruption.

Fixes: 4b2c53d9 ("SFH:Transport Driver to add support of AMD Sensor Fusion Hub (SFH)")
Tested-by: default avatarChris Hixon <linux-kernel-bugs@hixontech.com>
Tested-by: default avatarRichard <hobbes1069@gmail.com>
Tested-by: default avatarSkyler <skpu@pm.me>
Reported-by: default avatarChris Hixon <linux-kernel-bugs@hixontech.com>
Closes: https://lore.kernel.org/all/3b129b1f-8636-456a-80b4-0f6cce0eef63@hixontech.com/
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219331Signed-off-by: default avatarBasavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.com>
parent 7a5ab807
......@@ -236,9 +236,9 @@ int amd_sfh_hid_client_init(struct amd_mp2_dev *privdata)
cl_data->in_data = in_data;
for (i = 0; i < cl_data->num_hid_devices; i++) {
in_data->sensor_virt_addr[i] = dma_alloc_coherent(dev, sizeof(int) * 8,
&cl_data->sensor_dma_addr[i],
GFP_KERNEL);
in_data->sensor_virt_addr[i] = dmam_alloc_coherent(dev, sizeof(int) * 8,
&cl_data->sensor_dma_addr[i],
GFP_KERNEL);
if (!in_data->sensor_virt_addr[i]) {
rc = -ENOMEM;
goto cleanup;
......@@ -331,7 +331,6 @@ int amd_sfh_hid_client_init(struct amd_mp2_dev *privdata)
int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata)
{
struct amdtp_cl_data *cl_data = privdata->cl_data;
struct amd_input_data *in_data = cl_data->in_data;
int i, status;
for (i = 0; i < cl_data->num_hid_devices; i++) {
......@@ -351,12 +350,5 @@ int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata)
cancel_delayed_work_sync(&cl_data->work_buffer);
amdtp_hid_remove(cl_data);
for (i = 0; i < cl_data->num_hid_devices; i++) {
if (in_data->sensor_virt_addr[i]) {
dma_free_coherent(&privdata->pdev->dev, 8 * sizeof(int),
in_data->sensor_virt_addr[i],
cl_data->sensor_dma_addr[i]);
}
}
return 0;
}
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