As get_dailink_info spins through all the links anyway simply check the link masks there. This saves an extra check and means the code will fail earlier if the mask is invalid.
Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com --- sound/soc/intel/boards/sof_sdw.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c index 89614d08d0918..268629d5505c3 100644 --- a/sound/soc/intel/boards/sof_sdw.c +++ b/sound/soc/intel/boards/sof_sdw.c @@ -1053,6 +1053,10 @@ static int get_dailink_info(struct device *dev, int stream; u64 adr;
+ /* make sure the link mask has a single bit set */ + if (!is_power_of_2(adr_link->mask)) + return -EINVAL; + for (i = 0; i < adr_link->num_adr; i++) { adr = adr_link->adr_d[i].adr; codec_index = find_codec_info_part(adr); @@ -1302,10 +1306,6 @@ static int get_slave_info(const struct snd_soc_acpi_link_adr *adr_link, no_aggregation = sof_sdw_quirk & SOF_SDW_NO_AGGREGATION; adr_d = &adr_link->adr_d[adr_index];
- /* make sure the link mask has a single bit set */ - if (!is_power_of_2(adr_link->mask)) - return -EINVAL; - cpu_dai_id[index++] = ffs(adr_link->mask) - 1; if (!adr_d->endpoints->aggregated || no_aggregation) { *cpu_dai_num = 1; @@ -1334,10 +1334,6 @@ static int get_slave_info(const struct snd_soc_acpi_link_adr *adr_link, endpoint->group_id != *group_id) continue;
- /* make sure the link mask has a single bit set */ - if (!is_power_of_2(adr_next->mask)) - return -EINVAL; - if (index >= SDW_MAX_CPU_DAIS) { dev_err(dev, "cpu_dai_id array overflows\n"); return -EINVAL;