tree c934e0768b1e4d38e311a41554eed8c8835830e1
parent d4fd1bf83f447063fa4bfaf37c4b0142e57a7e77
author Shaul Triebitz <shaul.triebitz@intel.com> 1521720885 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1533275715 +0200

iwlwifi: pcie: fix race in Rx buffer allocator

[ Upstream commit 0f22e40053bd5378ad1e3250e65c574fd61c0cd6 ]

Make sure the rx_allocator worker is canceled before running the
rx_init routine.  rx_init frees and re-allocates all rxb's pages.  The
rx_allocator worker also allocates pages for the used rxb's.  Running
rx_init and rx_allocator simultaniously causes a kernel panic.  Fix
that by canceling the work in rx_init.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>