On Thu, Aug 14, 2014 at 03:29:15PM +0800, zhanghailiang wrote:
> The function fstat() may fail, so check its return value.
>
> Acked-by: Levente Kurusa <lkur...@redhat.com>
> Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
> ---
> hw/misc/ivshmem.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
> index 768e528..2be4b86 100644
> --- a/hw/misc/ivshmem.c
> +++ b/hw/misc/ivshmem.c
> @@ -324,7 +324,11 @@ static int check_shm_size(IVShmemState *s, int fd) {
>
> struct stat buf;
>
> - fstat(fd, &buf);
> + if (fstat(fd, &buf) < 0) {
> + fprintf(stderr, "ivshmem: exiting: fstat on fd %d failed: %s\n",
> + fd, strerror(errno));
> + return -1;
> + }
>
> if (s->ivshmem_size > buf.st_size) {
> fprintf(stderr,
> --
> 1.7.12.4
>
