Quit the jpeg viewer gracefully if started without arguments or with a wrong file in a directory with no supported filetypes.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11486 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 4 insertions, 0 deletions

diff --git a/apps/plugins/jpeg.c b/apps/plugins/jpeg.c
index 396617f40b..81b5098a2a 100644
--- a/apps/plugins/jpeg.c
+++ b/apps/plugins/jpeg.c
@@ -2839,9 +2839,13 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
     long graysize; /* helper */
 #endif
 
+    if(!parameter) return PLUGIN_ERROR;
+
     rb->strcpy(np_file, parameter);
     get_pic_list();
 
+    if(!entries) return PLUGIN_ERROR;
+
 #if (PLUGIN_BUFFER_SIZE >= MIN_MEM) && !defined(SIMULATOR)
     if(rb->audio_status())
     {