IB/mlx4: Don't call dma_free_coherent() with irqs disabled

Browse source

mlx4_ib_free_cq_buf() should not be called under spin_lock_irq() since
it calls dma_free_coherent(), which needs irqs enabled.  Fix this by
deferring the free to outside the locked region.

This was found due to the

	WARN_ON(irqs_disabled());

in swiotlb_free_coherent().

Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

...

This commit is contained in:

Vladimir Sokolovsky 2011-01-10 17:42:06 -08:00 • committed by Roland Dreier

parent f5a49539a6

commit 3afa9f19e5

1 changed files with 8 additions and 1 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

9

drivers/infiniband/hw/mlx4/cq.c

View file