hw/net/smc91c111: Use qemu_log_mask(GUEST_ERROR) instead of hw_error

hw_error() finally calls abort(), but there is no need to abort here.
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Message-id: 20180624040609.17572-14-f4bug@amsat.org
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

hw/net/smc91c111.c

@@ -11,6 +11,7 @@
 #include "hw/sysbus.h"
 #include "net/net.h"
 #include "hw/devices.h"
+#include "qemu/log.h"
 /* For crc32 */
 #include <zlib.h>
 
@@ -478,7 +479,9 @@ static void smc91c111_writeb(void *opaque, hwaddr offset,
         }
         break;
     }
-    hw_error("smc91c111_write: Bad reg %d:%x\n", s->bank, (int)offset);
+    qemu_log_mask(LOG_GUEST_ERROR, "smc91c111_write(bank:%d) Illegal register"
+                                   " 0x%" HWADDR_PRIx " = 0x%x\n",
+                  s->bank, offset, value);
 }
 
 static uint32_t smc91c111_readb(void *opaque, hwaddr offset)
@@ -621,7 +624,9 @@ static uint32_t smc91c111_readb(void *opaque, hwaddr offset)
         }
         break;
     }
-    hw_error("smc91c111_read: Bad reg %d:%x\n", s->bank, (int)offset);
+    qemu_log_mask(LOG_GUEST_ERROR, "smc91c111_read(bank:%d) Illegal register"
+                                   " 0x%" HWADDR_PRIx "\n",
+                  s->bank, offset);
     return 0;
 }