X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fbackend.c;h=e5fe6a3f764edcce2cb678e92f93a22277b6d486;hb=47bbc4b531eb8e491115b0dbcb686d23c78235fb;hp=beb5a8525b4bff4145d8030a2775a27bbb00ca86;hpb=42be2adb5ab329a0b22d9df392d8eca84d5d9acf;p=libsigrok.git

diff --git a/src/backend.c b/src/backend.c
index beb5a852..e5fe6a3f 100644
--- a/src/backend.c
+++ b/src/backend.c
@@ -309,7 +309,10 @@ static int sanity_check_all_drivers(const struct sr_context *ctx)
 			sr_err("No dev_list in driver %d ('%s').", i, d);
 			errors++;
 		}
-		/* Note: dev_clear() is optional. */
+		if (!drivers[i]->dev_clear) {
+			sr_err("No dev_clear in driver %d ('%s').", i, d);
+			errors++;
+		}
 		/* Note: config_get() is optional. */
 		if (!drivers[i]->config_set) {
 			sr_err("No config_set in driver %d ('%s').", i, d);