text_viewer: callback functions are changed to the function that returns int value.

And the text viewer quits when the problem occurs by callback functions.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27172 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 2 insertions, 1 deletions

diff --git a/apps/plugins/text_viewer/tv_pager.c b/apps/plugins/text_viewer/tv_pager.c
index e7016c7fef..a91d9d91ab 100644
--- a/apps/plugins/text_viewer/tv_pager.c
+++ b/apps/plugins/text_viewer/tv_pager.c
@@ -73,7 +73,7 @@ static off_t tv_get_fpos(int page)
     return 0;
 }
 
-static void tv_change_preferences(const struct tv_preferences *oldp)
+static int tv_change_preferences(const struct tv_preferences *oldp)
 {
     (void)oldp;
 
@@ -83,6 +83,7 @@ static void tv_change_preferences(const struct tv_preferences *oldp)
     max_page  = TV_MAX_PAGE - 1;
     tv_set_fpos(cur_pos.page, 0);
     tv_seek(0, SEEK_SET);
+    return TV_CALLBACK_OK;
 }
 
 bool tv_init_pager(unsigned char **buf, size_t *size)