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[xfer] Send intf_close() if redirection fails

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A redirection failure is fatal, but provides no opportunity for the
caller of xfer_[v]redirect() to report the failure since the interface
will already have been disconnected.  Fix by sending intf_close() from
within the default xfer_vredirect() handler.

Debugged-by: Robin Smidsrød <robin@smidsrod.no>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2016-07-04 16:10:45 +01:00
parent aeb6203811
commit 5e2a7481ad
1 changed files with 5 additions and 0 deletions
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5
src/core/xfer.c
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@@ -81,12 +81,17 @@ int xfer_vredirect ( struct interface *intf, int type, va_list args ) {
* xfer_vreopen(), we create a temporary interface in * xfer_vreopen(), we create a temporary interface in
* order to be able to send xfer_window_changed() to * order to be able to send xfer_window_changed() to
* the parent. * the parent.
*
* If redirection fails, then send intf_close() to the
* parent interface.
*/ */
intf_plug ( &tmp, dest ); intf_plug ( &tmp, dest );
rc = xfer_vreopen ( dest, type, args ); rc = xfer_vreopen ( dest, type, args );
if ( rc == 0 ) { if ( rc == 0 ) {
xfer_window_changed ( dest ); xfer_window_changed ( dest );
xfer_window_changed ( &tmp ); xfer_window_changed ( &tmp );
} else {
intf_close ( &tmp, rc );
} }
intf_unplug ( &tmp ); intf_unplug ( &tmp );
} }