diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-07-04 17:17:08 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-07-04 17:17:08 +0200 |
| commit | 67417f9c262e2cd4b706eba3e1fd879d0bebc6d8 (patch) | |
| tree | 5ab867187357c4c0e23e409f42f0e0dff63d6fa8 /arch/arm64/kernel/hibernate.c | |
| parent | tty/serial: atmel: enforce tasklet init and termination sequences (diff) | |
| parent | Linux 4.7-rc6 (diff) | |
| download | linux-67417f9c262e2cd4b706eba3e1fd879d0bebc6d8.tar.xz linux-67417f9c262e2cd4b706eba3e1fd879d0bebc6d8.zip | |
Merge 4.7-rc6 into tty-next
We want the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/kernel/hibernate.c')
| -rw-r--r-- | arch/arm64/kernel/hibernate.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c index f8df75d740f4..21ab5df9fa76 100644 --- a/arch/arm64/kernel/hibernate.c +++ b/arch/arm64/kernel/hibernate.c @@ -33,6 +33,7 @@ #include <asm/pgtable.h> #include <asm/pgtable-hwdef.h> #include <asm/sections.h> +#include <asm/smp.h> #include <asm/suspend.h> #include <asm/virt.h> @@ -236,6 +237,11 @@ int swsusp_arch_suspend(void) unsigned long flags; struct sleep_stack_data state; + if (cpus_are_stuck_in_kernel()) { + pr_err("Can't hibernate: no mechanism to offline secondary CPUs.\n"); + return -EBUSY; + } + local_dbg_save(flags); if (__cpu_suspend_enter(&state)) { |