Mostly for the benefit of alsaucm which passes the specified verb (if any) straight through, but the robustness fix seems better here.

Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- src/use-case.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/use-case.c b/src/use-case.c index b45fe1f..ee44275 100644 --- a/src/use-case.c +++ b/src/use-case.c @@ -2786,6 +2786,9 @@ int snd_use_case_set_verb(snd_use_case_mgr_t *uc_mgr, { int i = 0, ret = -EINVAL, inactive = 0;

+ if (!verb_name) + return -EINVAL; + pthread_mutex_lock(&uc_mgr->mutex);

uc_dbg("uc_mgr %p, verb_name %s", uc_mgr, verb_name);