[PULL 14/16] hw/arm/nseries: Check return value from load_image_targphys()

[Peter Maydell]

The nseries machines have a codepath that allows them to load a
secondary bootloader.  This code wasn't checking that the
load_image_targphys() succeeded.  Check the return value and report
the error to the user.

While we're in the vicinity, fix the comment style of the
comment documenting what this image load is doing.

Fixes: Coverity CID 1192904
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201103114918.11807-1-peter.maydell@linaro.org
---
 hw/arm/nseries.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c
index 6215c18d627..387eea4d44c 100644
--- a/hw/arm/nseries.c
+++ b/hw/arm/nseries.c
@@ -1369,7 +1369,8 @@ static void n8x0_init(MachineState *machine,
         /* No, wait, better start at the ROM.  */
         s->mpu->cpu->env.regs[15] = OMAP2_Q2_BASE + 0x400000;
 
-        /* This is intended for loading the `secondary.bin' program from
+        /*
+         * This is intended for loading the `secondary.bin' program from
          * Nokia images (the NOLO bootloader).  The entry point seems
          * to be at OMAP2_Q2_BASE + 0x400000.
          *
@@ -1377,9 +1378,15 @@ static void n8x0_init(MachineState *machine,
          * for them the entry point needs to be set to OMAP2_SRAM_BASE.
          *
          * The code above is for loading the `zImage' file from Nokia
-         * images.  */
-        load_image_targphys(option_rom[0].name, OMAP2_Q2_BASE + 0x400000,
-                            machine->ram_size - 0x400000);
+         * images.
+         */
+        if (load_image_targphys(option_rom[0].name,
+                                OMAP2_Q2_BASE + 0x400000,
+                                machine->ram_size - 0x400000) < 0) {
+            error_report("Failed to load secondary bootloader %s",
+                         option_rom[0].name);
+            exit(EXIT_FAILURE);
+        }
 
         n800_setup_nolo_tags(nolo_tags);
         cpu_physical_memory_write(OMAP2_SRAM_BASE, nolo_tags, 0x10000);
-- 
2.20.1