staging: vboxvideo: Fix NULL ptr deref in vbox_set_up_input_mapping()

Browse source

When vbox_set_up_input_mapping() gets called the first crtc might be
disable and not have a fb at all, triggering a NUL ptr deref at:

			vbox->input_mapping_width = CRTC_FB(crtci)->width;

Instead of using the fb from the crtc with id 0, just use the fb from
the first crtc with a fb. This is in the single_framebuffer = true path,
so all crtc-s point to the same fb anyways.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Hans de Goede 2018-09-18 19:44:36 +02:00 • committed by Greg Kroah-Hartman

parent 0fdda2ce74

commit 114094c83e

1 changed files with 4 additions and 4 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

8

drivers/staging/vboxvideo/vbox_mode.c

View file