Fix incorrect id check and potential out of bounds lookup

CMakeModules/CopyYuzuFFmpegDeps.cmake

@@ -6,5 +6,5 @@ function(copy_yuzu_FFmpeg_deps target_dir)
     set(DLL_DEST "$<TARGET_FILE_DIR:${target_dir}>/")
     file(READ "${FFmpeg_PATH}/requirements.txt" FFmpeg_REQUIRED_DLLS)
     string(STRIP "${FFmpeg_REQUIRED_DLLS}" FFmpeg_REQUIRED_DLLS)
-    windows_copy_files(${target_dir} ${FFmpeg_LIBRARY_DIR} ${DLL_DEST} ${FFmpeg_REQUIRED_DLLS})
+    windows_copy_files(${target_dir} ${FFmpeg_DLL_DIR} ${DLL_DEST} ${FFmpeg_REQUIRED_DLLS})
 endfunction(copy_yuzu_FFmpeg_deps)

src/core/hle/service/nvdrv/core/syncpoint_manager.cpp

@@ -64,7 +64,7 @@ void SyncpointManager::FreeSyncpoint(u32 id) {
 }
 
 bool SyncpointManager::IsSyncpointAllocated(u32 id) const {
-    return (id <= SyncpointCount) && syncpoints[id].reserved;
+    return (id < SyncpointCount) && syncpoints[id].reserved;
 }
 
 bool SyncpointManager::HasSyncpointExpired(u32 id, u32 threshold) const {

src/video_core/buffer_cache/buffer_cache.h

@@ -63,12 +63,8 @@ void BufferCache<P>::RunGarbageCollector() {
 
 template <class P>
 void BufferCache<P>::TickFrame() {
-    // Homebrew console apps don't create or bind any channels, so this will be nullptr.
-    if (!channel_state) {
-        return;
-    }
-
     // Calculate hits and shots and move hit bits to the right
+
     const u32 hits = std::reduce(channel_state->uniform_cache_hits.begin(),
                                  channel_state->uniform_cache_hits.end());
     const u32 shots = std::reduce(channel_state->uniform_cache_shots.begin(),