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* grub-core/bus/usb/uhci.c (grub_uhci_setup_transfer): Fix possible

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NULL pointer dereference.
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Szymon Janc committed 2011-10-19 23:11:48 +02:00
1 parent de9c615e5c
commit fcf1d67219
2 files changed
+10 -2
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ChangeLog
+5
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@@ -1,3 +1,8 @@
2011-10-19 Szymon Janc <szymon@janc.net.pl>
* grub-core/bus/usb/uhci.c (grub_uhci_setup_transfer): Fix possible
NULL pointer dereference.
2011-10-19 Vladimir Serbinenko <phcoder@gmail.com> 2011-10-19 Vladimir Serbinenko <phcoder@gmail.com>
Removed unused GRUB_BOOT_VERSION. Check for kernel version is better Removed unused GRUB_BOOT_VERSION. Check for kernel version is better
grub-core/bus/usb/uhci.c
+5 -2
View File
@@ -544,8 +544,11 @@ grub_uhci_setup_transfer (grub_usb_controller_t dev,
{ {
grub_size_t actual = 0; grub_size_t actual = 0;
/* Terminate and free. */ /* Terminate and free. */
td_prev->linkptr2 = 0; if (td_prev)
td_prev->linkptr = 1; {
td_prev->linkptr2 = 0;
td_prev->linkptr = 1;
}
if (cdata->td_first) if (cdata->td_first)
grub_free_queue (u, cdata->qh, cdata->td_first, NULL, &actual); grub_free_queue (u, cdata->qh, cdata->td_first, NULL, &actual);