Check API pointer before use, fix spelling

2 files changed, 2 insertions, 2 deletions

diff --git a/backend.c b/backend.c
index 2af2f37..a2b120f 100644
--- a/backend.c
+++ b/backend.c
@@ -189,7 +189,7 @@ void channels_free(){
 	size_t u;
 	for(u = 0; u < nchannels; u++){
 		DBGPF("Destroying channel %lu on instance %s\n", channels[u]->ident, channels[u]->instance->name);
-		if(channels[u]->impl){
+		if(channels[u]->impl && channels[u]->instance->backend->channel_free){
 			channels[u]->instance->backend->channel_free(channels[u]);
 		}
 		free(channels[u]);
diff --git a/installer.sh b/installer.sh
index c85b70e..15ad203 100755
--- a/installer.sh
+++ b/installer.sh
@@ -106,7 +106,7 @@ UPDATER-PREP () {
 		printf "\nInitializing repository...\n"
 		cd $tmp_path
 		git init $tmp_path
-		printf "Sucessfully imported settings from %s\n" "$updater_file"
+		printf "Successfully imported settings from %s\n" "$updater_file"
 	)
 	NIGHTLY_CHECK
 	printf "Preparation successful\n\n"