correct checking size in function get_image_filename.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24844 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 3 insertions, 4 deletions

diff --git a/apps/gui/skin_engine/skin_parser.c b/apps/gui/skin_engine/skin_parser.c
index 4363a293c8..7f4406a0bf 100644
--- a/apps/gui/skin_engine/skin_parser.c
+++ b/apps/gui/skin_engine/skin_parser.c
@@ -571,15 +571,14 @@ char *get_image_filename(const char *start, const char* bmpdir,
                                 char *buf, int buf_size)
 {
     const char *end = strchr(start, '|');
+    int bmpdirlen = strlen(bmpdir);
 
-    if ( !end || (end - start) >= (buf_size - (int)ROCKBOX_DIR_LEN - 2) )
+    if ( !end || (end - start) >= (buf_size - bmpdirlen - 2) )
     {
-        buf = "\0";
+        buf[0] = '\0';
         return NULL;
     }
 
-    int bmpdirlen = strlen(bmpdir);
-
     strcpy(buf, bmpdir);
     buf[bmpdirlen] = '/';
     memcpy( &buf[bmpdirlen + 1], start, end - start);