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ASoC: Intel: avs: Copy only as many RX bytes as necessary 

There is no need to copy number of bytes specified by IPC message caller
if DSP firmware returned lower number. In consequence, LARGE_CONFIG_GET
handler is simplified.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220707124153.1858249-5-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski 2022-07-07 14:41:45 +02:00 committed by Mark Brown
parent 8192d24ccc
commit 3c1923a119
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 3 additions and 4 deletions
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1
sound/soc/intel/avs/ipc.c
View File

@ -480,6 +480,7 @@ static int avs_dsp_do_send_msg(struct avs_dev *adev, struct avs_ipc_msg *request
ret = ipc->rx.rsp.status;
if (reply) {
reply->header = ipc->rx.header;
reply->size = ipc->rx.size;
if (reply->data && ipc->rx.size)
memcpy(reply->data, ipc->rx.data, reply->size);
}

6
sound/soc/intel/avs/messages.c
View File

@ -378,7 +378,6 @@ int avs_ipc_get_large_config(struct avs_dev *adev, u16 module_id, u8 instance_id
union avs_module_msg msg = AVS_MODULE_REQUEST(LARGE_CONFIG_GET);
struct avs_ipc_msg request;
struct avs_ipc_msg reply = {{0}};
size_t size;
void *buf;
int ret;
@ -406,15 +405,14 @@ int avs_ipc_get_large_config(struct avs_dev *adev, u16 module_id, u8 instance_id
return ret;
}
size = reply.rsp.ext.large_config.data_off_size;
buf = krealloc(reply.data, size, GFP_KERNEL);
buf = krealloc(reply.data, reply.size, GFP_KERNEL);
if (!buf) {
kfree(reply.data);
return -ENOMEM;
}
*reply_data = buf;
*reply_size = size;
*reply_size = reply.size;
return 0;
}