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| author | Ben Hutchings <ben@decadent.org.uk> | 2020-09-27 22:50:42 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-10-02 19:01:55 +0200 |
| commit | 7cecb47f55e00282f972a1e0b09136c8cd938221 (patch) | |
| tree | bf016b79779583ffdc402c6c94924728e372046c /include | |
| parent | a1b8638ba1320e6684aa98233c15255eb803fac7 (diff) | |
| download | linux-7cecb47f55e00282f972a1e0b09136c8cd938221.tar.bz2 | |
ACPI / extlog: Check for RDMSR failure
extlog_init() uses rdmsrl() to read an MSR, which on older CPUs
provokes a error message at boot:
unchecked MSR access error: RDMSR from 0x179 at rIP: 0xcd047307 (native_read_msr+0x7/0x40)
Use rdmsrl_safe() instead, and return -ENODEV if it fails.
Reported-by: jim@photojim.ca
References: https://bugs.debian.org/971058
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions