From c5763fc0950455cb72c7d452bc1115f6904b6ca0 Mon Sep 17 00:00:00 2001 From: Wendy Liang Date: Tue, 30 Oct 2018 14:59:42 -0700 Subject: [PATCH] apps: zynq7: check NULL pointer in mmap() Check if pointer is NULL in mmap() before writing to it. Signed-off-by: Wendy Liang --- apps/machine/zynq7/zynq_a9_rproc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/apps/machine/zynq7/zynq_a9_rproc.c b/apps/machine/zynq7/zynq_a9_rproc.c index b4e2aab67..abba9f7e5 100644 --- a/apps/machine/zynq7/zynq_a9_rproc.c +++ b/apps/machine/zynq7/zynq_a9_rproc.c @@ -130,7 +130,8 @@ zynq_a9_proc_mmap(struct remoteproc *rproc, metal_phys_addr_t *pa, remoteproc_add_mem(rproc, mem); *pa = lpa; *da = lda; - *io = tmpio; + if (io) + *io = tmpio; return metal_io_phys_to_virt(tmpio, mem->pa); }