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ASoC: SOF: control: correct the copy size for bytes kcontrol put 

The size for the bytes kcontrol should include the abi header, that is,
data->size + sizeof(*data), it is also aligned with get method after
this change.

Fixes: c3078f5397 ("ASoC: SOF: Add Sound Open Firmware KControl support")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Keyon Jie 2019-05-24 14:09:22 -05:00 committed by Mark Brown
parent fab4edf42d
commit 5661ad9490
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 5 additions and 4 deletions
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9
sound/soc/sof/control.c
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@ -349,6 +349,7 @@ int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
struct snd_sof_dev *sdev = scontrol->sdev;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
struct sof_abi_hdr *data = cdata->data;
size_t size = data->size + sizeof(*data);
int ret, err;
if (be->max > sizeof(ucontrol->value.bytes.data)) {
@ -358,10 +359,10 @@ int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
return -EINVAL;
}
if (data->size > be->max) {
if (size > be->max) {
dev_err_ratelimited(sdev->dev,
"error: size too big %d bytes max is %d\n",
data->size, be->max);
"error: size too big %zu bytes max is %d\n",
size, be->max);
return -EINVAL;
}
@ -375,7 +376,7 @@ int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
}
/* copy from kcontrol */
memcpy(data, ucontrol->value.bytes.data, data->size);
memcpy(data, ucontrol->value.bytes.data, size);
/* notify DSP of byte control updates */
snd_sof_ipc_set_get_comp_data(sdev->ipc, scontrol,