Message ID | 1408001361-13580-5-git-send-email-zhang.zhanghailiang@huawei.com |
---|---|
State | New |
Headers | show |
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 <lkurusa@redhat.com> > Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@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 >
Applied to -trivial, thanks! /mjt
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,