diff --git a/src/sources/torrent/storage_dedupe.go b/src/sources/torrent/storage_dedupe.go
index 4b9a8ca..04b086d 100644
--- a/src/sources/torrent/storage_dedupe.go
+++ b/src/sources/torrent/storage_dedupe.go
@@ -118,12 +118,12 @@ func (s *fileStorage) dedupeFiles(ctx context.Context, paths []string) (deduped
 
 	srcF, err := os.Open(paths[0])
 	if err != nil {
-		return deduped, err
+		return deduped, fmt.Errorf("error opening file %s: %w", paths[0], err)
 	}
 	defer srcF.Close()
 	srcStat, err := srcF.Stat()
 	if err != nil {
-		return deduped, err
+		return deduped, fmt.Errorf("error stat file %s: %w", paths[0], err)
 	}
 
 	srcFd := int(srcF.Fd())
@@ -133,12 +133,12 @@ func (s *fileStorage) dedupeFiles(ctx context.Context, paths []string) (deduped
 	err = unix.Fstatfs(srcFd, &fsStat)
 	if err != nil {
 		span.RecordError(err)
-		return deduped, err
+		return deduped, fmt.Errorf("error statfs file %s: %w", paths[0], err)
 	}
 
 	srcHash, err := filehash(srcF)
 	if err != nil {
-		return deduped, err
+		return deduped, fmt.Errorf("error hashing file %s: %w", paths[0], err)
 	}
 
 	if int64(fsStat.Bsize) > srcSize { // for btrfs it means file in residing in not deduplicatable metadata
@@ -162,13 +162,13 @@ func (s *fileStorage) dedupeFiles(ctx context.Context, paths []string) (deduped
 
 		destF, err := os.OpenFile(dst, os.O_RDWR, os.ModePerm)
 		if err != nil {
-			return deduped, err
+			return deduped, fmt.Errorf("error opening file %s: %w", dst, err)
 		}
 		defer destF.Close()
 
 		dstHash, err := filehash(destF)
 		if err != nil {
-			return deduped, err
+			return deduped, fmt.Errorf("error hashing file %s: %w", dst, err)
 		}
 
 		if srcHash != dstHash {
@@ -199,7 +199,7 @@ func (s *fileStorage) dedupeFiles(ctx context.Context, paths []string) (deduped
 
 	err = unix.IoctlFileDedupeRange(srcFd, &rng)
 	if err != nil {
-		return deduped, err
+		return deduped, fmt.Errorf("error calling FIDEDUPERANGE: %w", err)
 	}
 
 	for i := range rng.Info {
@@ -223,7 +223,3 @@ func filehash(r io.Reader) ([20]byte, error) {
 
 	return sha1.Sum(buf), nil
 }
-
-func ptr[D any](v D) *D {
-	return &v
-}