From 6653d1318d623681fc7e849e9ae5069ad144864a Mon Sep 17 00:00:00 2001 From: Andrey Shinkevich Date: Wed, 29 May 2019 21:20:27 +0300 Subject: [PATCH] hw/block/fdc: floppy command FIFO memory initialization The uninitialized memory allocated for the command FIFO of the floppy controller during the VM hardware initialization incurs many unwanted reports by Valgrind when VM state is being saved. That verbosity hardens a search for the real memory issues when the iotests run. Particularly, the patch eliminates 20 unnecessary reports of the Valgrind tool in the iotest #169. Signed-off-by: Andrey Shinkevich Message-id: 1559154027-282547-1-git-send-email-andrey.shinkevich@virtuozzo.com Reviewed-by: John Snow Signed-off-by: Max Reitz --- hw/block/fdc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/block/fdc.c b/hw/block/fdc.c index a64378f84b..77af9979de 100644 --- a/hw/block/fdc.c +++ b/hw/block/fdc.c @@ -2648,6 +2648,7 @@ static void fdctrl_realize_common(DeviceState *dev, FDCtrl *fdctrl, FLOPPY_DPRINTF("init controller\n"); fdctrl->fifo = qemu_memalign(512, FD_SECTOR_LEN); + memset(fdctrl->fifo, 0, FD_SECTOR_LEN); fdctrl->fifo_size = 512; fdctrl->result_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, fdctrl_result_timer, fdctrl);