PCI/VGA: Pass vga_get_uninterruptible() errors to userspace

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If VGA routing cannot be established, vga_get_uninterruptible() returns an
error and does not increment the lock count. Return the error to the
caller.

Return before incrementing uc->io_cnt/mem_cnt so vga_arb_release() won't
call vga_put() when userspace closes the handle.

Signed-off-by: Simon Richter <Simon.Richter@hogyros.de>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260307173538.763188-2-Simon.Richter@hogyros.de

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Simon Richter 2026-03-08 02:35:34 +09:00 • committed by Bjorn Helgaas

parent 6de23f81a5

commit 2a93c9851b

1 changed files with 6 additions and 1 deletions

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7

drivers/pci/vgaarb.c

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