tiffsplit.c: Fix memleak before exit

Details of the memleak:
$ valgrind --leak-check=full tiffsplit id:001763,sync:fuzzer07,src:001641,+cov

==2090657==
==2090657== HEAP SUMMARY:
==2090657==     in use at exit: 13,517 bytes in 17 blocks
==2090657==   total heap usage: 41 allocs, 24 frees, 29,351 bytes allocated
==2090657==
==2090657== 2,473 (1,249 direct, 1,224 indirect) bytes in 1 blocks are definitely lost in loss record 10 of 13
==2090657==    at 0x484086F: malloc (vg_replace_malloc.c:381)
==2090657==    by 0x48BF35C: TIFFClientOpen (tif_open.c:118)
==2090657==    by 0x48CF058: TIFFFdOpen (tif_unix.c:209)
==2090657==    by 0x48CF0C4: TIFFOpen (tif_unix.c:248)
==2090657==    by 0x10954C: main (tiffsplit.c:91)
==2090657==
==2090657== 11,044 (1,300 direct, 9,744 indirect) bytes in 1 blocks are definitely lost in loss record 13 of 13
==2090657==    at 0x484086F: malloc (vg_replace_malloc.c:381)
==2090657==    by 0x48BF35C: TIFFClientOpen (tif_open.c:118)
==2090657==    by 0x48CF058: TIFFFdOpen (tif_unix.c:209)
==2090657==    by 0x48CF0C4: TIFFOpen (tif_unix.c:248)
==2090657==    by 0x1093D9: main (tiffsplit.c:75)
==2090657==
==2090657== LEAK SUMMARY:
==2090657==    definitely lost: 2,549 bytes in 2 blocks
==2090657==    indirectly lost: 10,968 bytes in 15 blocks
==2090657==      possibly lost: 0 bytes in 0 blocks
==2090657==    still reachable: 0 bytes in 0 blocks
==2090657==         suppressed: 0 bytes in 0 blocks
==2090657==
==2090657== For lists of detected and suppressed errors, rerun with: -s
==2090657== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)

Signed-off-by: Han Han <hanhanzhiyeqianke@gmail.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/tools/tiffsplit.c b/tools/tiffsplit.c
index 296d6bf9..ffcd00f2 100644
--- a/tools/tiffsplit.c
+++ b/tools/tiffsplit.c
@@ -91,10 +91,16 @@ main(int argc, char* argv[])
                 out = TIFFOpen(path, TIFFIsBigEndian(in)?"wb":"wl");
                 _TIFFfree(path);
 
-                if (out == NULL)
+                if (out == NULL) {
+                        TIFFClose(in);
                         return (EXIT_FAILURE);
-                if (!tiffcp(in, out))
+                }
+                if (!tiffcp(in, out)) {
+                        TIFFClose(in);
+                        TIFFClose(out);
                         return (EXIT_FAILURE);
+
+                }
                 TIFFClose(out);
         } while (TIFFReadDirectory(in));