Dan Carpenter d6701d258d PowerCap: Fix an error code in powercap_register_zone() ...

[ Upstream commit 216c4e9db4 ]

In the current code we accidentally return the successful result from
idr_alloc() instead of a negative error pointer.  The caller is looking
for an error pointer and so it treats the returned value as a valid
pointer.

This one might be a bit serious because if it lets people get around the
kernel's protection for remapping NULL.  I'm not sure.

Fixes: 75d2364ea0 (PowerCap: Add class driver)
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-04-13 19:47:56 +02:00

..

intel_rapl.c

powercap/intel_rapl: fix and tidy up error handling

2017-01-19 20:18:07 +01:00

Kconfig

powercap / RAPL: fix build dependency on iosf_mbi

2014-11-12 21:09:19 +01:00

Makefile

PowerCap: Introduce Intel RAPL power capping driver

2013-10-18 13:29:52 +02:00

powercap_sys.c

PowerCap: Fix an error code in powercap_register_zone()

2018-04-13 19:47:56 +02:00