4.4-stable review patch. If anyone has any objections, please let me know.
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From: "Shuah Khan (Samsung OSG)" shuah@kernel.org
[ Upstream commit d179f99a651685b19333360e6558110da2fe9bd7 ]
detach_port() fails to call usbip_vhci_driver_close() from its error path after usbip_vhci_detach_device() returns failure, leaking memory allocated in usbip_vhci_driver_open() and holding udev_context and udev references. Fix it to call usbip_vhci_driver_close().
Signed-off-by: Shuah Khan (Samsung OSG) shuah@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/usb/usbip/src/usbip_detach.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
--- a/tools/usb/usbip/src/usbip_detach.c +++ b/tools/usb/usbip/src/usbip_detach.c @@ -43,7 +43,7 @@ void usbip_detach_usage(void)
static int detach_port(char *port) { - int ret; + int ret = 0; uint8_t portnum; char path[PATH_MAX+1];
@@ -73,9 +73,12 @@ static int detach_port(char *port) }
ret = usbip_vhci_detach_device(portnum); - if (ret < 0) - return -1; + if (ret < 0) { + ret = -1; + goto call_driver_close; + }
+call_driver_close: usbip_vhci_driver_close();
return ret;