Vaibhav Jain 241e62005c cxl: Fix wrong comparison in cxl_adapter_context_get() ...

commit ef6cb5f1a0 upstream.

Function atomic_inc_unless_negative() returns a bool to indicate
success/failure. However cxl_adapter_context_get() wrongly compares
the return value against '>=0' which will always be true. The patch
fixes this comparison to '==0' there by also fixing this compile time
warning:

	drivers/misc/cxl/main.c:290 cxl_adapter_context_get()
	warn: 'atomic_inc_unless_negative(&adapter->contexts_num)' is unsigned

Fixes: 70b565bbdb ("cxl: Prevent adapter reset if an active context exists")
Cc: stable@vger.kernel.org # v4.9+
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-09-09 19:55:54 +02:00

..

api.c

cxl_getfile(): fix double-iput() on alloc_file() failures

2018-07-25 11:25:11 +02:00

base.c

cxl: Add support for interrupts on the Mellanox CX4

2016-07-14 20:27:08 +10:00

context.c

cxl: Fixes for Coherent Accelerator Interface Architecture 2.0

2017-06-23 16:26:23 +10:00

cxl.h

cxl: Check if PSL data-cache is available before issue flush request

2018-05-30 07:52:33 +02:00

cxllib.c

cxl: Fix possible deadlock when processing page faults from cxllib

2018-04-24 09:36:32 +02:00

debugfs.c

cxl: Add psl9 specific code

2017-04-13 23:34:31 +10:00

fault.c

powerpc/mm/cxl: Add barrier when setting mm cpumask

2017-08-31 14:26:39 +10:00

file.c

cxl: Fix driver use count

2017-08-31 14:26:49 +10:00

flash.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

guest.c

cxl: Add psl9 specific code

2017-04-13 23:34:31 +10:00

hcalls.c

cxl: Remove unused values in bare-metal environment.

2017-04-13 23:34:28 +10:00

hcalls.h

cxl: Add guest-specific code

2016-03-09 23:36:52 +11:00

irq.c

cxl: Add psl9 specific code

2017-04-13 23:34:31 +10:00

Kconfig

cxl: Export library to support IBM XSL

2017-07-03 23:07:03 +10:00

main.c

cxl: Fix wrong comparison in cxl_adapter_context_get()

2018-09-09 19:55:54 +02:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

native.c

cxl: Check if PSL data-cache is available before issue flush request

2018-05-30 07:52:33 +02:00

of.c

cxl: replace loop with for_each_child_of_node(), remove unneeded of_node_put()

2016-10-04 16:19:23 +11:00

pci.c

cxl: Check if PSL data-cache is available before issue flush request

2018-05-30 07:52:33 +02:00

phb.c

cxl: Fix error handling in _cxl_pci_associate_default_context()

2016-11-18 22:41:08 +11:00

sysfs.c

cxl: Disable prefault_mode in Radix mode

2018-07-03 11:24:51 +02:00

trace.c

cxl: Add tracepoints

2015-01-22 17:31:51 +11:00

trace.h

cxl: Add psl9 specific code

2017-04-13 23:34:31 +10:00

vphb.c

cxl: fix nested locking hang during EEH hotplug

2017-02-21 21:32:52 +11:00