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[PATCH v2 1/1] hw/riscv/boot: Check the error of fdt_pack()
From: |
Alistair Francis |
Subject: |
[PATCH v2 1/1] hw/riscv/boot: Check the error of fdt_pack() |
Date: |
Thu, 15 Jul 2021 09:01:22 +1000 |
Coverity reports that we don't check the error result of fdt_pack(), so
let's save the result and assert that it is 0.
Fixes: Coverity CID 1458136
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---
hw/riscv/boot.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/hw/riscv/boot.c b/hw/riscv/boot.c
index 0d38bb7426..993bf89064 100644
--- a/hw/riscv/boot.c
+++ b/hw/riscv/boot.c
@@ -182,7 +182,7 @@ uint32_t riscv_load_fdt(hwaddr dram_base, uint64_t
mem_size, void *fdt)
{
uint32_t temp, fdt_addr;
hwaddr dram_end = dram_base + mem_size;
- int fdtsize = fdt_totalsize(fdt);
+ int ret, fdtsize = fdt_totalsize(fdt);
if (fdtsize <= 0) {
error_report("invalid device-tree");
@@ -198,7 +198,9 @@ uint32_t riscv_load_fdt(hwaddr dram_base, uint64_t
mem_size, void *fdt)
temp = MIN(dram_end, 3072 * MiB);
fdt_addr = QEMU_ALIGN_DOWN(temp - fdtsize, 16 * MiB);
- fdt_pack(fdt);
+ ret = fdt_pack(fdt);
+ /* Should only fail if we've built a corrupted tree */
+ g_assert(ret == 0);
/* copy in the device tree */
qemu_fdt_dumpdtb(fdt, fdtsize);
--
2.31.1
- [PATCH v2 1/1] hw/riscv/boot: Check the error of fdt_pack(),
Alistair Francis <=