ffprobe: fix use of uninitialized pointer in av_strtok()

Fixes CID733837
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4334ba043e9601717af3a7ca46addfaf154d5fb6)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 4 insertions, 0 deletions

diff --git a/ffprobe.c b/ffprobe.c
index ca6133e323..48c813a17c 100644
--- a/ffprobe.c
+++ b/ffprobe.c
@@ -1790,6 +1790,10 @@ int main(int argc, char **argv)
 
     if (!print_format)
         print_format = av_strdup("default");
+    if (!print_format) {
+        ret = AVERROR(ENOMEM);
+        goto end;
+    }
     w_name = av_strtok(print_format, "=", &buf);
     w_args = buf;