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ASoC: Intel: avs: Shield LARGE_CONFIG_GETs against zero payload_size

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Some LARGE_CONFIG_GETs are never expected to return payload of size 0.
Check for such situation and collapse if met.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220707124153.1858249-6-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski 2022-07-07 14:41:46 +02:00 committed by Mark Brown
parent 3c1923a119
commit 00566ad4ce
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GPG Key ID: 24D68B725D5487D0
1 changed files with 9 additions and 0 deletions
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9
sound/soc/intel/avs/messages.c
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@ -474,6 +474,9 @@ int avs_ipc_get_fw_config(struct avs_dev *adev, struct avs_fw_cfg *cfg)
&payload, &payload_size);
if (ret)
return ret;
/* Non-zero payload expected for FIRMWARE_CONFIG. */
if (!payload_size)
return -EREMOTEIO;
while (offset < payload_size) {
tlv = (struct avs_tlv *)(payload + offset);
@ -587,6 +590,9 @@ int avs_ipc_get_hw_config(struct avs_dev *adev, struct avs_hw_cfg *cfg)
&payload, &payload_size);
if (ret)
return ret;
/* Non-zero payload expected for HARDWARE_CONFIG. */
if (!payload_size)
return -EREMOTEIO;
while (offset < payload_size) {
tlv = (struct avs_tlv *)(payload + offset);
@ -670,6 +676,9 @@ int avs_ipc_get_modules_info(struct avs_dev *adev, struct avs_mods_info **info)
&payload, &payload_size);
if (ret)
return ret;
/* Non-zero payload expected for MODULES_INFO. */
if (!payload_size)
return -EREMOTEIO;
*info = (struct avs_mods_info *)payload;
return 0;