diff options
| -rw-r--r-- | arch/um/drivers/virtio_uml.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/um/drivers/virtio_uml.c b/arch/um/drivers/virtio_uml.c index 515d648d3c3d..ef620caed8e7 100644 --- a/arch/um/drivers/virtio_uml.c +++ b/arch/um/drivers/virtio_uml.c @@ -97,6 +97,9 @@ static int full_read(int fd, void *buf, int len, bool abortable) { int rc; + if (!len) + return 0; + do { rc = os_read_file(fd, buf, len); if (rc > 0) { |