From fdf8707bd56f0e29024f79fa42598b4c4e124f33 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Mon, 5 Jun 2017 16:42:07 +0800 Subject: [PATCH] ACPICA: Unix application OSL: Correctly handle control-c (EINTR) ACPICA commit dfbb87c3a96cfd007375f34a96e6f4a8ee477f97 Handle EINTR from a sem_wait operation. Ignore a control-c. Link: https://github.com/acpica/acpica/commit/dfbb87c3 Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- tools/power/acpi/os_specific/service_layers/osunixxf.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/tools/power/acpi/os_specific/service_layers/osunixxf.c b/tools/power/acpi/os_specific/service_layers/osunixxf.c index c04e8fea2c60..025c1b07049d 100644 --- a/tools/power/acpi/os_specific/service_layers/osunixxf.c +++ b/tools/power/acpi/os_specific/service_layers/osunixxf.c @@ -750,9 +750,9 @@ acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 msec_timeout) { acpi_status status = AE_OK; sem_t *sem = (sem_t *) handle; + int ret_val; #ifndef ACPI_USE_ALTERNATE_TIMEOUT struct timespec time; - int ret_val; #endif if (!sem) { @@ -778,7 +778,10 @@ acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 msec_timeout) case ACPI_WAIT_FOREVER: - if (sem_wait(sem)) { + while (((ret_val = sem_wait(sem)) == -1) && (errno == EINTR)) { + continue; /* Restart if interrupted */ + } + if (ret_val != 0) { status = (AE_TIME); } break; @@ -831,7 +834,8 @@ acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 msec_timeout) while (((ret_val = sem_timedwait(sem, &time)) == -1) && (errno == EINTR)) { - continue; + continue; /* Restart if interrupted */ + } if (ret_val != 0) {