fix FS#9119 (crash if random folder list has no entries)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17862 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 4 insertions, 1 deletions

diff --git a/apps/playlist.c b/apps/playlist.c
index 280d6dc19f..8f800f616b 100644
--- a/apps/playlist.c
+++ b/apps/playlist.c
@@ -1486,6 +1486,8 @@ static int get_next_dir(char *dir, bool is_forward, bool recursion)
         if (fd >= 0)
         {
             read(fd,&folder_count,sizeof(int));
+            if (!folder_count)
+                exit = true;
             while (!exit)
             {
                 i = rand()%folder_count;
@@ -1494,7 +1496,8 @@ static int get_next_dir(char *dir, bool is_forward, bool recursion)
                 if (check_subdir_for_music(buffer,"") ==0)
                     exit = true;
             }
-            strcpy(dir,buffer);
+            if (folder_count)
+                strcpy(dir,buffer);
             close(fd);
             *(tc->dirfilter) = dirfilter;
             reload_directory();