cargo doc: fix warnings

BUG=None
TEST=tools/cargo-doc

Change-Id: I332849dd0df415f634df4c9ad664176f8b8891cf
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3936732
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Dennis Kempin <denniskempin@google.com>

devices/src/virtio/gpu/edid.rs

@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 //! Implementation of the EDID specification provided by software.
-//! EDID spec: https://glenwing.github.io/docs/VESA-EEDID-A2.pdf
+//! EDID spec: <https://glenwing.github.io/docs/VESA-EEDID-A2.pdf>
 
 use std::fmt;
 use std::fmt::Debug;

devices/src/virtio/queue.rs

@@ -479,7 +479,7 @@ impl Queue {
         Ok(())
     }
 
-    /// Releases memory exported by a previous call to [export_memory].
+    /// Releases memory exported by a previous call to [`Queue::export_memory()`].
     pub fn release_exported_memory(&mut self) {
         self.exported_desc_table = None;
         self.exported_avail_ring = None;

devices/src/virtio/snd/common_backend/stream_info.rs

@@ -97,7 +97,7 @@ impl Drop for StreamInfo {
 impl StreamInfo {
     /// Creates a new [`StreamInfo`].
     ///
-    /// * `stream_source_generator`: Generator which generates stream source in [`prepare()`].
+    /// * `stream_source_generator`: Generator which generates stream source in [`StreamInfo::prepare()`].
     pub fn new(stream_source_generator: Box<dyn StreamSourceGenerator>) -> Self {
         StreamInfo {
             stream_source: None,

devices/src/virtio/vhost/user/device/snd.rs

@@ -289,7 +289,7 @@ pub struct Options {
     /// comma separated key=value pairs for setting up cras snd devices.
     /// Possible key values:
     /// capture - Enable audio capture. Default to false.
-    /// backend(null,[cras]) - Which backend to use for vhost-snd.
+    /// backend - Which backend to use for vhost-snd (null|cras).
     /// client_type - Set specific client type for cras backend.
     /// socket_type - Set socket type for cras backend.
     /// num_output_devices - Set number of output PCM devices.

kernel_loader/src/lib.rs

@@ -82,7 +82,7 @@ pub enum Error {
 pub type Result<T> = std::result::Result<T, Error>;
 
 #[derive(Debug, Copy, Clone, PartialEq)]
-/// Information about a kernel loaded with the [`load_kernel`] function.
+/// Information about a kernel loaded with the [`load_elf`] function.
 pub struct LoadedKernel {
     /// Address range containg the bounds of the loaded program headers.
     /// `address_range.start` is the start of the lowest loaded program header.