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| author | Paul E. McKenney <[email protected]> | 2012-02-28 21:27:44 +0000 |
|---|---|---|
| committer | Len Brown <[email protected]> | 2012-03-30 07:58:06 +0000 |
| commit | 9505626d7bfeb5bd4b85acb483831ac640b2a5e8 (patch) | |
| tree | 70e19eeda29ed3c98b628381eed2a3ce75ee398f /lib/string_helpers.c | |
| parent | ACPI: consistently use should_use_kmap() (diff) | |
| download | kernel-9505626d7bfeb5bd4b85acb483831ac640b2a5e8.tar.gz kernel-9505626d7bfeb5bd4b85acb483831ac640b2a5e8.zip | |
ACPI: Fix unprotected smp_processor_id() in acpi_processor_cst_has_changed()
The acpi_processor_cst_has_changed() function is invoked from a
CPU_ONLINE or CPU_DEAD function, which might well execute on CPU 0
even though the CPU being hotplugged is some other CPU. In addition,
acpi_processor_cst_has_changed() invokes smp_processor_id() without
protection, resulting in splats when onlining CPUs.
This commit therefore changes the smp_processor_id() to pr->id, as is
used elsewhere in the code, for example, in acpi_processor_add().
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
Reviewed-by: Srivatsa S. Bhat <[email protected]>
Tested-by: Yong Zhang <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Len Brown <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions