diff options
Diffstat (limited to 'kernel/power/swsusp.c')
| -rw-r--r-- | kernel/power/swsusp.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c index 5da304c8f1f6..e1722d3155f1 100644 --- a/kernel/power/swsusp.c +++ b/kernel/power/swsusp.c | |||
| @@ -270,39 +270,6 @@ int swsusp_shrink_memory(void) | |||
| 270 | return 0; | 270 | return 0; |
| 271 | } | 271 | } |
| 272 | 272 | ||
| 273 | int swsusp_suspend(void) | ||
| 274 | { | ||
| 275 | int error; | ||
| 276 | |||
| 277 | if ((error = arch_prepare_suspend())) | ||
| 278 | return error; | ||
| 279 | |||
| 280 | local_irq_disable(); | ||
| 281 | /* At this point, device_suspend() has been called, but *not* | ||
| 282 | * device_power_down(). We *must* device_power_down() now. | ||
| 283 | * Otherwise, drivers for some devices (e.g. interrupt controllers) | ||
| 284 | * become desynchronized with the actual state of the hardware | ||
| 285 | * at resume time, and evil weirdness ensues. | ||
| 286 | */ | ||
| 287 | if ((error = device_power_down(PMSG_FREEZE))) { | ||
| 288 | printk(KERN_ERR "Some devices failed to power down, aborting suspend\n"); | ||
| 289 | goto Enable_irqs; | ||
| 290 | } | ||
| 291 | |||
| 292 | save_processor_state(); | ||
| 293 | if ((error = swsusp_arch_suspend())) | ||
| 294 | printk(KERN_ERR "Error %d suspending\n", error); | ||
| 295 | /* Restore control flow magically appears here */ | ||
| 296 | restore_processor_state(); | ||
| 297 | /* NOTE: device_power_up() is just a resume() for devices | ||
| 298 | * that suspended with irqs off ... no overall powerup. | ||
| 299 | */ | ||
| 300 | device_power_up(); | ||
| 301 | Enable_irqs: | ||
| 302 | local_irq_enable(); | ||
| 303 | return error; | ||
| 304 | } | ||
| 305 | |||
| 306 | int swsusp_resume(void) | 273 | int swsusp_resume(void) |
| 307 | { | 274 | { |
| 308 | int error; | 275 | int error; |
