[FFmpeg-cvslog] tools/crypto_bench: check malloc fail before using it

[Jun Zhao]

ffmpeg | branch: master | Jun Zhao <barryjzhao at tencent.com> | Thu May  9 01:16:27 2019 +0800| [153a6a67a93af0f0bd00d76670e59e741c9a13c7] | committer: Jun Zhao

tools/crypto_bench: check malloc fail before using it

Need to check malloc fail before using it, so adjust the location
in the code.

Reviewed-by: Nicolas George <nicolas.george at normalesup.org>
Signed-off-by: Jun Zhao <barryjzhao at tencent.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=153a6a67a93af0f0bd00d76670e59e741c9a13c7
---

 tools/crypto_bench.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/crypto_bench.c b/tools/crypto_bench.c
index aca8bbb1a8..ac9fcc465e 100644
--- a/tools/crypto_bench.c
+++ b/tools/crypto_bench.c
@@ -665,8 +665,8 @@ struct hash_impl implementations[] = {
 
 int main(int argc, char **argv)
 {
-    uint8_t *input = av_malloc(MAX_INPUT_SIZE * 2);
-    uint8_t *output = input + MAX_INPUT_SIZE;
+    uint8_t *input;
+    uint8_t *output;
     unsigned i, impl, size;
     int opt;
 
@@ -702,12 +702,14 @@ int main(int argc, char **argv)
             exit(opt != 'h');
         }
     }
-
+    input = av_malloc(MAX_INPUT_SIZE * 2);
     if (!input)
         fatal_error("out of memory");
     for (i = 0; i < MAX_INPUT_SIZE; i += 4)
         AV_WB32(input + i, i);
 
+    output = input + MAX_INPUT_SIZE;
+
     size = MAX_INPUT_SIZE;
     for (impl = 0; impl < FF_ARRAY_ELEMS(implementations); impl++)
         run_implementation(input, output, &implementations[impl], size);