Vaibhav Jain c335b49379 cxl: Wrap iterations over afu slices inside 'afu_list_lock' ... commit edeb304f65 upstream. Within cxl module, iteration over array 'adapter->afu' may be racy at few points as it might be simultaneously read during an EEH and its contents being set to NULL while driver is being unloaded or unbound from the adapter. This might result in a NULL pointer to 'struct afu' being de-referenced during an EEH thereby causing a kernel oops. This patch fixes this by making sure that all access to the array 'adapter->afu' is wrapped within the context of spin-lock 'adapter->afu_list_lock'. Fixes: 9e8df8a219 ("cxl: EEH support") Cc: stable@vger.kernel.org # v4.3+ Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Acked-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-03-23 20:10:03 +01:00
..
api.c	powerpc updates for 4.19	2018-08-17 11:32:50 -07:00
base.c	Revert "cxl: Allow a default context to be associated with an external pci_dev"	2018-07-02 23:54:33 +10:00
context.c	cxl: Remove abandonned capi support for the Mellanox CX4, final cleanup	2018-07-02 23:54:33 +10:00
cxl.h	Merge branch 'topic/ppc-kvm' into next	2018-07-19 14:37:57 +10:00
cxllib.c	powerpc/64s: Remove POWER9 DD1 support	2018-07-16 11:37:21 +10:00
debugfs.c	cxl: Remove abandonned capi support for the Mellanox CX4, final cleanup	2018-07-02 23:54:33 +10:00
fault.c	Merge branch 'akpm' (patches from Andrew)	2018-08-17 16:49:31 -07:00
file.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
flash.c
guest.c	cxl: Wrap iterations over afu slices inside 'afu_list_lock'	2019-03-23 20:10:03 +01:00
hcalls.c
hcalls.h
irq.c
Kconfig	Revert "cxl: Add cxl_check_and_switch_mode() API to switch bi-modal cards"	2018-07-02 23:54:31 +10:00
main.c	cxl: Fix wrong comparison in cxl_adapter_context_get()	2018-07-19 21:58:11 +10:00
Makefile	Revert "cxl: Allow a default context to be associated with an external pci_dev"	2018-07-02 23:54:33 +10:00
native.c	Revert "cxl: Add kernel API to allow a context to operate with relocate disabled"	2018-07-02 23:54:30 +10:00
of.c	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
pci.c	cxl: Wrap iterations over afu slices inside 'afu_list_lock'	2019-03-23 20:10:03 +01:00
sysfs.c	Merge branch 'fixes' into next	2018-06-03 20:32:02 +10:00
trace.c
trace.h
vphb.c	Revert "cxl: Allow a default context to be associated with an external pci_dev"	2018-07-02 23:54:33 +10:00