[hackers] [farbfeld] fix segfault on JPG error || FRIGN

[git]

commit dbfeeacb8c678974f89eb1fd09a7ef6a6076c8fb
Author:     FRIGN <d...@frign.de>
AuthorDate: Tue Dec 8 16:57:22 2015 +0100
Commit:     FRIGN <d...@frign.de>
CommitDate: Tue Dec 8 16:57:22 2015 +0100

    fix segfault on JPG error
    
    thanks Quentin Rameau!

diff --git a/jpg2ff.c b/jpg2ff.c
index f7ac5fc..52b4928 100644
--- a/jpg2ff.c
+++ b/jpg2ff.c
@@ -37,7 +37,7 @@ main(int argc, char *argv[])
        struct jpeg_decompress_struct cinfo;
        struct jpeg_error_mgr jerr;
        uint32_t width, height, val_be;
-       uint16_t *ff_row;
+       uint16_t *ff_row = NULL;
        size_t jpeg_row_len, ff_row_len, i, dx, sx;
        int ret = 1;
        JSAMPARRAY buffer; /* output row buffer */