Make ExtractErrno a function

PiperOrigin-RevId: 306891171

1 files changed, 6 insertions, 6 deletions

diff --git a/pkg/sentry/kernel/task_syscall.go b/pkg/sentry/kernel/task_syscall.go
index 3d7a734ef..c9db78e06 100644
--- a/pkg/sentry/kernel/task_syscall.go
+++ b/pkg/sentry/kernel/task_syscall.go
@@ -312,7 +312,7 @@ func (t *Task) doSyscallInvoke(sysno uintptr, args arch.SyscallArguments) taskRu
 			return ctrl.next
 		}
 	} else if err != nil {
-		t.Arch().SetReturn(uintptr(-t.ExtractErrno(err, int(sysno))))
+		t.Arch().SetReturn(uintptr(-ExtractErrno(err, int(sysno))))
 		t.haveSyscallReturn = true
 	} else {
 		t.Arch().SetReturn(rval)
@@ -431,7 +431,7 @@ func (t *Task) doVsyscallInvoke(sysno uintptr, args arch.SyscallArguments, calle
 			// A return is not emulated in this case.
 			return (*runApp)(nil)
 		}
-		t.Arch().SetReturn(uintptr(-t.ExtractErrno(err, int(sysno))))
+		t.Arch().SetReturn(uintptr(-ExtractErrno(err, int(sysno))))
 	}
 	t.Arch().SetIP(t.Arch().Value(caller))
 	t.Arch().SetStack(t.Arch().Stack() + uintptr(t.Arch().Width()))
@@ -441,7 +441,7 @@ func (t *Task) doVsyscallInvoke(sysno uintptr, args arch.SyscallArguments, calle
 // ExtractErrno extracts an integer error number from the error.
 // The syscall number is purely for context in the error case. Use -1 if
 // syscall number is unknown.
-func (t *Task) ExtractErrno(err error, sysno int) int {
+func ExtractErrno(err error, sysno int) int {
 	switch err := err.(type) {
 	case nil:
 		return 0
@@ -455,11 +455,11 @@ func (t *Task) ExtractErrno(err error, sysno int) int {
 		// handled (and the SIGBUS is delivered).
 		return int(syscall.EFAULT)
 	case *os.PathError:
-		return t.ExtractErrno(err.Err, sysno)
+		return ExtractErrno(err.Err, sysno)
 	case *os.LinkError:
-		return t.ExtractErrno(err.Err, sysno)
+		return ExtractErrno(err.Err, sysno)
 	case *os.SyscallError:
-		return t.ExtractErrno(err.Err, sysno)
+		return ExtractErrno(err.Err, sysno)
 	default:
 		if errno, ok := syserror.TranslateError(err); ok {
 			return int(errno)