]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] fix "ACPI: Processor native C-states using MWAIT"
authorDarrick J. Wong <djwong@us.ibm.com>
Fri, 20 Oct 2006 06:28:28 +0000 (23:28 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 20 Oct 2006 17:26:37 +0000 (10:26 -0700)
commitc5a114f1fb2d3c54be62779a705e088471063b47
treef3eff245cf2a8ea3d829d59fb5237b07f00830ce
parent74e8b51d254865b8abe4a94b5eb82b1940ec820c
[PATCH] fix "ACPI: Processor native C-states using MWAIT"

This patch breaks C-state discovery on my IBM IntelliStation Z30 because
the return value of acpi_processor_get_power_info_fadt is not assigned to
"result" in the case that acpi_processor_get_power_info_cst returns
-ENODEV.  Thus, if ACPI provides C-state data via the FADT and not _CST (as
is the case on this machine), we incorrectly exit the function with -ENODEV
after reading the FADT.  The attached patch sets the value of result so
that we don't exit early.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Acked-by: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>
Acked-by: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/acpi/processor_idle.c