From: Nathan Hjelm <hjelmn@mac.com>
Date: Sun, 23 Aug 2009 04:17:55 +0000 (+0545)
Subject: Darwin: fix crash when reading descriptors after close
X-Git-Tag: upstream/1.0.21~971
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ad8ae04d0b52009af0b1180e005f7554d2bbb26c;p=platform%2Fupstream%2Flibusb.git

Darwin: fix crash when reading descriptors after close

Fix a crash which occurs if the user does the following sequence on a
device: open, close, get_configuration_descriptor.
---

diff --git a/libusb/os/darwin_usb.c b/libusb/os/darwin_usb.c
index 9e12e07..8c1afec 100644
--- a/libusb/os/darwin_usb.c
+++ b/libusb/os/darwin_usb.c
@@ -652,6 +652,9 @@ static void darwin_close (struct libusb_device_handle *dev_handle) {
   usbi_remove_pollfd (HANDLE_CTX (dev_handle), priv->fds[0]);
   close (priv->fds[1]);
   close (priv->fds[0]);
+
+  dpriv->device = NULL;
+  priv->fds[0] = priv->fds[1] = -1;
 }
 
 static int darwin_get_configuration(struct libusb_device_handle *dev_handle, int *config) {