| Message ID | 1452882183-20767-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c index 366641d0483f..5b9eccd3e9ff 100644 --- a/drivers/gpu/vga/vgaarb.c +++ b/drivers/gpu/vga/vgaarb.c @@ -393,8 +393,10 @@ int vga_get(struct pci_dev *pdev, unsigned int rsrc, int interruptible) set_current_state(interruptible ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE); - if (signal_pending(current)) { - rc = -EINTR; + if (interruptible && signal_pending(current)) { + __set_current_state(TASK_RUNNING); + remove_wait_queue(&vga_wait_queue, &wait); + rc = -ERESTARTSYS; break; } schedule();
This is a note to let you know that I have just added a patch titled vgaarb: fix signal handling in vga_get() to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue This patch is scheduled to be released in version 3.16.7-ckt23. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.16.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ---8<------------------------------------------------------------ From ccd3c87a73c5fff50220339a6a61736c99c61370 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" <kirill@shutemov.name> Date: Mon, 30 Nov 2015 04:17:31 +0200 Subject: vgaarb: fix signal handling in vga_get() commit 9f5bd30818c42c6c36a51f93b4df75a2ea2bd85e upstream. There are few defects in vga_get() related to signal hadning: - we shouldn't check for pending signals for TASK_UNINTERRUPTIBLE case; - if we found pending signal we must remove ourself from wait queue and change task state back to running; - -ERESTARTSYS is more appropriate, I guess. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/gpu/vga/vgaarb.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)