ucm: be more restrictive for device name with descriptor

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/src/ucm/parser.c b/src/ucm/parser.c
index 2c0d2678d21664b078d00608855e3310ac239025..5205dff78ce8341b45d4fbb4074413c22337c930 100644 (file)
--- a/src/ucm/parser.c
+++ b/src/ucm/parser.c
@@ -1970,6 +1970,11 @@ static int verb_normalize_device_names(snd_use_case_mgr_t *uc_mgr, struct use_ca
 
                colon = strchr(norm_name, ':');
                if (colon) {
+                       if (colon[1] == '\0' || strchr(colon + 1, ' ')) {
+                               snd_error(UCM, "device descriptor cannot be empty or contain spaces '%s'", orig_name);
+                               err = -EINVAL;
+                               goto __error;
+                       }
                        *colon = '\0';
                        index = 1;
                        do {