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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-07-27 11:42:48 +0200
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-07-27 11:42:52 +0200
commit4708ac49305bbcd511600d4af71a4c6dca15af65 (patch)
tree77ba5c83a7d4f4a119e3fd524d82adc297df1e35 /drivers/acpi/acpica/exsystem.c
parentARM: 6225/1: make TCM allocation static and common for all archs (diff)
parentMerge master.kernel.org:/home/rmk/linux-2.6-arm (diff)
downloadlinux-4708ac49305bbcd511600d4af71a4c6dca15af65.tar.xz
linux-4708ac49305bbcd511600d4af71a4c6dca15af65.zip
Merge branch 'origin' into misc
Diffstat (limited to 'drivers/acpi/acpica/exsystem.c')
-rw-r--r--drivers/acpi/acpica/exsystem.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c
index 6d32e09327f1..675aaa91a770 100644
--- a/drivers/acpi/acpica/exsystem.c
+++ b/drivers/acpi/acpica/exsystem.c
@@ -201,6 +201,14 @@ acpi_status acpi_ex_system_do_sleep(u64 how_long)
acpi_ex_relinquish_interpreter();
+ /*
+ * For compatibility with other ACPI implementations and to prevent
+ * accidental deep sleeps, limit the sleep time to something reasonable.
+ */
+ if (how_long > ACPI_MAX_SLEEP) {
+ how_long = ACPI_MAX_SLEEP;
+ }
+
acpi_os_sleep(how_long);
/* And now we must get the interpreter again */