staging: most: sound: remove overcautious argument checking

The interface pointer passed to a component API function cannot be NULL.
This patch removes the unnecessary sanity check of this argument.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Link: https://lore.kernel.org/r/1592924855-25569-6-git-send-email-christian.gromm@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/most/sound/sound.c b/drivers/staging/most/sound/sound.c
index 7c56cdb4d8ee1c11dd6ed963e496ada509688811..8a449ab9bdce4616de39402ee2c2f6b845eb74f1 100644 (file)
--- a/drivers/staging/most/sound/sound.c
+++ b/drivers/staging/most/sound/sound.c
@@ -531,9 +531,6 @@ static int audio_probe_channel(struct most_interface *iface, int channel_id,
        char *sample_res;
        char arg_list_cpy[STRING_SIZE];
 
-       if (!iface)
-               return -EINVAL;
-
        if (cfg->data_type != MOST_CH_SYNC) {
                pr_err("Incompatible channel type\n");
                return -EINVAL;