[PATCH v2] tools: mkimage: Fix nullptr at strchr()

The 'file' pointer can be null. Thus, before using it in the strchr() function, you need to make sure that it is not null.

Fixes: d1be8f922eb3 ("mkimage: Fix variable length header support") Signed-off-by: Mikhail Ilin ilin.mikhail.ol@gmail.com --- tools/mkimage.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/tools/mkimage.c b/tools/mkimage.c index 5f51d2cc89..95005d8414 100644 --- a/tools/mkimage.c +++ b/tools/mkimage.c @@ -509,6 +509,8 @@ int main(int argc, char **argv) file = params.datafile;

for (;;) { + if (!file) + break; char *sep = strchr(file, ':'); if (sep) { *sep = '\0';