From 07a978ef376cde544cca564ec225a8eb79ff2d54 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 22 Apr 2020 15:07:11 +0200 Subject: [PATCH] fdc: Fix fallback=auto error handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit fdctrl_realize_common() rejects fallback=auto. Used by devices "isa-fdc", "sysbus-fdc", "SUNW,fdtwo". The error handling is broken: $ qemu-system-x86_64 -nodefaults -device isa-fdc,fallback=auto,driveA=fd0 -drive if=none,id=fd0 ** ERROR:/work/armbru/qemu/hw/block/fdc.c:434:pick_drive_type: assertion failed: (drv->drive != FLOPPY_DRIVE_TYPE_AUTO) Aborted (core dumped) Cause: fdctrl_realize_common() neglects to bail out after setting the error. Fix that. Fixes: a73275dd6fc3bfda33165bebc28e0c33c20cb0a0 Cc: John Snow Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20200422130719.28225-7-armbru@redhat.com> --- hw/block/fdc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/block/fdc.c b/hw/block/fdc.c index 33bc9e2f92..9628cc171e 100644 --- a/hw/block/fdc.c +++ b/hw/block/fdc.c @@ -2615,6 +2615,7 @@ static void fdctrl_realize_common(DeviceState *dev, FDCtrl *fdctrl, if (fdctrl->fallback == FLOPPY_DRIVE_TYPE_AUTO) { error_setg(errp, "Cannot choose a fallback FDrive type of 'auto'"); + return; } /* Fill 'command_to_handler' lookup table */