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Diffstat (limited to 'kernel/power/disk.c')
-rw-r--r--kernel/power/disk.c35
1 files changed, 18 insertions, 17 deletions
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 02b6764034dc..fb8de63c2919 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -117,8 +117,8 @@ static void finish(void)
117{ 117{
118 device_resume(); 118 device_resume();
119 platform_finish(); 119 platform_finish();
120 enable_nonboot_cpus();
121 thaw_processes(); 120 thaw_processes();
121 enable_nonboot_cpus();
122 pm_restore_console(); 122 pm_restore_console();
123} 123}
124 124
@@ -131,28 +131,35 @@ static int prepare_processes(void)
131 131
132 sys_sync(); 132 sys_sync();
133 133
134 disable_nonboot_cpus();
135
134 if (freeze_processes()) { 136 if (freeze_processes()) {
135 error = -EBUSY; 137 error = -EBUSY;
136 return error; 138 goto thaw;
137 } 139 }
138 140
139 if (pm_disk_mode == PM_DISK_PLATFORM) { 141 if (pm_disk_mode == PM_DISK_PLATFORM) {
140 if (pm_ops && pm_ops->prepare) { 142 if (pm_ops && pm_ops->prepare) {
141 if ((error = pm_ops->prepare(PM_SUSPEND_DISK))) 143 if ((error = pm_ops->prepare(PM_SUSPEND_DISK)))
142 return error; 144 goto thaw;
143 } 145 }
144 } 146 }
145 147
146 /* Free memory before shutting down devices. */ 148 /* Free memory before shutting down devices. */
147 free_some_memory(); 149 free_some_memory();
148
149 return 0; 150 return 0;
151thaw:
152 thaw_processes();
153 enable_nonboot_cpus();
154 pm_restore_console();
155 return error;
150} 156}
151 157
152static void unprepare_processes(void) 158static void unprepare_processes(void)
153{ 159{
154 enable_nonboot_cpus(); 160 platform_finish();
155 thaw_processes(); 161 thaw_processes();
162 enable_nonboot_cpus();
156 pm_restore_console(); 163 pm_restore_console();
157} 164}
158 165
@@ -160,15 +167,9 @@ static int prepare_devices(void)
160{ 167{
161 int error; 168 int error;
162 169
163 disable_nonboot_cpus(); 170 if ((error = device_suspend(PMSG_FREEZE)))
164 if ((error = device_suspend(PMSG_FREEZE))) {
165 printk("Some devices failed to suspend\n"); 171 printk("Some devices failed to suspend\n");
166 platform_finish(); 172 return error;
167 enable_nonboot_cpus();
168 return error;
169 }
170
171 return 0;
172} 173}
173 174
174/** 175/**
@@ -185,9 +186,9 @@ int pm_suspend_disk(void)
185 int error; 186 int error;
186 187
187 error = prepare_processes(); 188 error = prepare_processes();
188 if (!error) { 189 if (error)
189 error = prepare_devices(); 190 return error;
190 } 191 error = prepare_devices();
191 192
192 if (error) { 193 if (error) {
193 unprepare_processes(); 194 unprepare_processes();
@@ -250,7 +251,7 @@ static int software_resume(void)
250 251
251 if ((error = prepare_processes())) { 252 if ((error = prepare_processes())) {
252 swsusp_close(); 253 swsusp_close();
253 goto Cleanup; 254 goto Done;
254 } 255 }
255 256
256 pr_debug("PM: Reading swsusp image.\n"); 257 pr_debug("PM: Reading swsusp image.\n");