udf: Make udf_get_filename() return error instead of 0 length file name
Zero length file name isn't really valid. So check the length of the
final file name generated by udf_translate_to_linux() and return -EINVAL
instead of zero length file name. Update caller of udf_get_filename() to
not check for 0 return value.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index fcf227e..541d9c6 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -168,7 +168,7 @@
}
flen = udf_get_filename(sb, nameptr, lfi, fname, UDF_NAME_LEN);
- if (flen <= 0)
+ if (flen < 0)
continue;
tloc = lelb_to_cpu(cfi.icb.extLocation);
