diff options
Diffstat (limited to 'drivers/acpi/acpica/exsystem.c')
| -rw-r--r-- | drivers/acpi/acpica/exsystem.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c index 6d32e09327f1..df66e7b686be 100644 --- a/drivers/acpi/acpica/exsystem.c +++ b/drivers/acpi/acpica/exsystem.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2010, Intel Corp. + * Copyright (C) 2000 - 2011, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -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 */ |