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[PULL,17/37] hw/riscv/boot.c: exit early if filename is NULL in load functions

Message ID 20230120073913.1028407-18-alistair.francis@opensource.wdc.com
State New
Headers show
Series [PULL,01/37] hw/char: riscv_htif: Avoid using magic numbers | expand

Commit Message

Alistair Francis Jan. 20, 2023, 7:38 a.m. UTC 
From: Daniel Henrique Barboza <dbarboza@ventanamicro.com>

riscv_load_firmware(), riscv_load_initrd() and riscv_load_kernel() works
under the assumption that a 'filename' parameter is always not NULL.

This is currently the case since all callers of these functions are
checking for NULL before calling them. Add an g_assert() to make sure
that a NULL value in these cases are to be considered a bug.

Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230102115241.25733-5-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 hw/riscv/boot.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/hw/riscv/boot.c b/hw/riscv/boot.c
index 98b80af51b..31aa3385a0 100644
--- a/hw/riscv/boot.c
+++ b/hw/riscv/boot.c
@@ -153,6 +153,8 @@  target_ulong riscv_load_firmware(const char *firmware_filename,
     uint64_t firmware_entry, firmware_end;
     ssize_t firmware_size;
 
+    g_assert(firmware_filename != NULL);
+
     if (load_elf_ram_sym(firmware_filename, NULL, NULL, NULL,
                          &firmware_entry, NULL, &firmware_end, NULL,
                          0, EM_RISCV, 1, 0, NULL, true, sym_cb) > 0) {
@@ -177,6 +179,8 @@  target_ulong riscv_load_kernel(const char *kernel_filename,
 {
     uint64_t kernel_load_base, kernel_entry;
 
+    g_assert(kernel_filename != NULL);
+
     /*
      * NB: Use low address not ELF entry point to ensure that the fw_dynamic
      * behaviour when loading an ELF matches the fw_payload, fw_jump and BBL
@@ -209,6 +213,8 @@  hwaddr riscv_load_initrd(const char *filename, uint64_t mem_size,
 {
     ssize_t size;
 
+    g_assert(filename != NULL);
+
     /*
      * We want to put the initrd far enough into RAM that when the
      * kernel is uncompressed it will not clobber the initrd. However