https://github.com/torvalds/linux
Revision 6d827fbcc370ca259a2905309f64161ab7b10596 authored by Guenter Roeck on 21 June 2014, 15:08:08 UTC, committed by Greg Kroah-Hartman on 09 July 2014, 23:45:36 UTC
Commit f36fdb9f0266 (i8k: Force SMM to run on CPU 0) adds support
for multi-core CPUs to the driver. Unfortunately, that causes it
to fail loading if compiled without SMP support, at least on
32 bit kernels. Kernel log shows "i8k: unable to get SMM Dell
signature", and function i8k_smm is found to return -EINVAL.

Testing revealed that the culprit is the missing return value check
of set_cpus_allowed_ptr.

Fixes: f36fdb9f0266 (i8k: Force SMM to run on CPU 0)
Reported-by: Jim Bos <jim876@xs4all.nl>
Tested-by: Jim Bos <jim876@xs4all.nl>
Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: Andreas Mohr <andi@lisas.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 parent 9bd2d0d
History
Tip revision: 6d827fbcc370ca259a2905309f64161ab7b10596 authored by Guenter Roeck on 21 June 2014, 15:08:08 UTC
i8k: Fix non-SMP operation
Tip revision: 6d827fb
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