[PATCH 6/7] hw/isa: Assert isa_register_portio_list() gets non-NULL ISA device

[Philippe Mathieu-Daudé]

The previous commit removed the single call to
isa_register_portio_list() with dev=NULL. To be
sure we won't reintroduce such weird (ab)use,
add an assertion.

Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
 hw/isa/isa-bus.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/isa/isa-bus.c b/hw/isa/isa-bus.c
index 95fc1ba5f7..3d1996c115 100644
--- a/hw/isa/isa-bus.c
+++ b/hw/isa/isa-bus.c
@@ -107,7 +107,7 @@ IsaDma *isa_get_dma(ISABus *bus, int nchan)
 
 static inline void isa_init_ioport(ISADevice *dev, uint16_t ioport)
 {
-    if (dev && (dev->ioport_id == 0 || ioport < dev->ioport_id)) {
+    if (dev->ioport_id == 0 || ioport < dev->ioport_id) {
         dev->ioport_id = ioport;
     }
 }
@@ -123,6 +123,8 @@ int isa_register_portio_list(ISADevice *dev,
                              const MemoryRegionPortio *pio_start,
                              void *opaque, const char *name)
 {
+    assert(dev);
+
     if (!isabus) {
         return -ENODEV;
     }
-- 
2.38.1