From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>, patches@linaro.org
Subject: [Qemu-devel] [PATCH] hw/pc.c: Fix use-while-uninitialized of fd_type[]
Date: Wed, 9 Nov 2011 21:59:50 +0000 [thread overview]
Message-ID: <1320875990-10517-1-git-send-email-peter.maydell@linaro.org> (raw)
Fix a use-while-uninitialized of the fd_type[] array (introduced
in commit 34d4260e1, noticed by Coverity). This is more theoretical
than practical, since it's quite hard to get here with floppy==NULL
(the qdev_try_create() of the isa-fdc device has to fail).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
hw/pc.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/hw/pc.c b/hw/pc.c
index 3015671..33778fe 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -335,7 +335,7 @@ void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
ISADevice *s)
{
int val, nb, nb_heads, max_track, last_sect, i;
- FDriveType fd_type[2];
+ FDriveType fd_type[2] = { FDRIVE_DRV_NONE, FDRIVE_DRV_NONE };
BlockDriverState *fd[MAX_FD];
static pc_cmos_init_late_arg arg;
@@ -385,8 +385,6 @@ void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
bdrv_get_floppy_geometry_hint(fd[i], &nb_heads, &max_track,
&last_sect, FDRIVE_DRV_NONE,
&fd_type[i]);
- } else {
- fd_type[i] = FDRIVE_DRV_NONE;
}
}
}
--
1.7.1
next reply other threads:[~2011-11-09 21:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-09 21:59 Peter Maydell [this message]
2011-11-10 13:04 ` [Qemu-devel] [PATCH] hw/pc.c: Fix use-while-uninitialized of fd_type[] Kevin Wolf
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