soundwire: stream: Remove unneeded checks for NULL bus

Version of the code prior to commit d014688eb373 ("soundwire: stream:
remove bus->dev from logs on multiple buses"), used bus->dev in the
error message after do_bank_switch, this necessitated some checking to
ensure the bus pointer was valid. As the code no longer uses bus->dev
said checking is now redundant, so remove it.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230602101140.2040141-3-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index 379228f..6595f47 100644 (file)
--- 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;
@@ -1382,11 +1382,6 @@ program_params:
                }
        }
 
-       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);
@@ -1467,7 +1462,7 @@ 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 */
@@ -1490,11 +1485,6 @@ 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);