Every error path in do_bank_switch prints an error message so there is no need for the callers to also print error messages. Indeed in multi-master cases these extra messages are confusing because they print out against a random bus device whereas the do_bank_switch messages print against the bus that actually failed.
This also allows clean up of a couple of if's and variable initialisations that were only there to silence potentially uninitialised variable warnings on the bus variable.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com --- drivers/soundwire/stream.c | 26 +++++--------------------- 1 file changed, 5 insertions(+), 21 deletions(-)
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index 248ab243ec6e4..b5c7a52aac19e 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -1338,7 +1338,7 @@ static int _sdw_prepare_stream(struct sdw_stream_runtime *stream, bool update_params) { struct sdw_master_runtime *m_rt; - struct sdw_bus *bus = NULL; + struct sdw_bus *bus; struct sdw_master_prop *prop; struct sdw_bus_params params; int ret; @@ -1380,16 +1380,9 @@ static int _sdw_prepare_stream(struct sdw_stream_runtime *stream, } }
- if (!bus) { - pr_err("Configuration error in %s\n", __func__); - return -EINVAL; - } - ret = do_bank_switch(stream); - if (ret < 0) { - pr_err("%s: do_bank_switch failed: %d\n", __func__, ret); + if (ret < 0) goto restore_params; - }
list_for_each_entry(m_rt, &stream->master_list, stream_node) { bus = m_rt->bus; @@ -1465,7 +1458,7 @@ EXPORT_SYMBOL(sdw_prepare_stream); static int _sdw_enable_stream(struct sdw_stream_runtime *stream) { struct sdw_master_runtime *m_rt; - struct sdw_bus *bus = NULL; + struct sdw_bus *bus; int ret;
/* Enable Master(s) and Slave(s) port(s) associated with stream */ @@ -1488,16 +1481,9 @@ static int _sdw_enable_stream(struct sdw_stream_runtime *stream) } }
- if (!bus) { - pr_err("Configuration error in %s\n", __func__); - return -EINVAL; - } - ret = do_bank_switch(stream); - if (ret < 0) { - pr_err("%s: do_bank_switch failed: %d\n", __func__, ret); + if (ret < 0) return ret; - }
stream->state = SDW_STREAM_ENABLED; return 0; @@ -1571,10 +1557,8 @@ static int _sdw_disable_stream(struct sdw_stream_runtime *stream) }
ret = do_bank_switch(stream); - if (ret < 0) { - pr_err("%s: do_bank_switch failed: %d\n", __func__, ret); + if (ret < 0) return ret; - }
/* make sure alternate bank (previous current) is also disabled */ list_for_each_entry(m_rt, &stream->master_list, stream_node) {