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db/proxy: simplify error handling in GetSong() 

Check mpd_response_finish() before using mpd_song.  Don't skip this
check even if the mpd_song is non-nullptr.
This commit is contained in:
Max Kellermann 2014-01-19 11:37:42 +01:00
parent ba372197fb
commit 738d6f1040
1 changed files with 9 additions and 11 deletions
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20
src/db/ProxyDatabasePlugin.cxx
View File

@ -440,22 +440,20 @@ ProxyDatabase::GetSong(const char *uri, Error &error) const
}
struct mpd_song *song = mpd_recv_song(connection);
Song *song2 = song != nullptr
? Convert(song)
: nullptr;
if (song != nullptr)
mpd_song_free(song);
if (!mpd_response_finish(connection)) {
if (song2 != nullptr)
song2->Free();
CheckError(connection, error);
if (!mpd_response_finish(connection) &&
!CheckError(connection, error)) {
if (song != nullptr)
mpd_song_free(song);
return nullptr;
}
if (song2 == nullptr)
if (song == nullptr) {
error.Format(db_domain, DB_NOT_FOUND, "No such song: %s", uri);
return nullptr;
}
Song *song2 = Convert(song);
mpd_song_free(song);
return song2;
}