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sleep: refuse hibernation if there's no possible way to resume

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Follow-up for 90efe8a6d4
Closes #19819
This commit is contained in:
Mike Yuan
2023-06-26 17:23:36 +02:00
committed by Lennart Poettering
parent 12ab9ae8c6
commit 7470b80763
1 changed files with 9 additions and 8 deletions
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src/sleep/sleep.c
+9 -8
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@@ -53,7 +53,8 @@
static SleepOperation arg_operation = _SLEEP_OPERATION_INVALID;
static int write_efi_hibernate_location(const HibernateLocation *hibernate_location, bool required) {
int r = 0;
int log_level = required ? LOG_ERR : LOG_DEBUG,
log_level_ignore = required ? LOG_WARNING : LOG_DEBUG;
#if ENABLE_EFI
_cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
@@ -63,16 +64,14 @@ static int write_efi_hibernate_location(const HibernateLocation *hibernate_locat
const char *uuid_str;
sd_id128_t uuid;
struct utsname uts = {};
int log_level, log_level_ignore;
int r;
assert(hibernate_location);
assert(hibernate_location->swap);
if (!is_efi_boot())
return 0;
log_level = required ? LOG_ERR : LOG_DEBUG;
log_level_ignore = required ? LOG_WARNING : LOG_DEBUG;
return log_full_errno(log_level, SYNTHETIC_ERRNO(EOPNOTSUPP),
"Not an EFI boot, passing HibernateLocation via EFI variable is not possible.");
r = sd_device_new_from_devnum(&device, 'b', hibernate_location->devno);
if (r < 0)
@@ -120,9 +119,11 @@ static int write_efi_hibernate_location(const HibernateLocation *hibernate_locat
return log_full_errno(log_level, r, "Failed to set EFI variable HibernateLocation: %m");
log_debug("Set EFI variable HibernateLocation to '%s'.", formatted);
return 0;
#else
return log_full_errno(log_level, SYNTHETIC_ERRNO(EOPNOTSUPP),
"EFI support not enabled, passing HibernateLocation via EFI variable is not possible.");
#endif
return r;
}
static int write_kernel_hibernate_location(const HibernateLocation *hibernate_location) {