diff options
Diffstat (limited to 'kernel/power/hibernate.c')
| -rw-r--r-- | kernel/power/hibernate.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 37170d4dd9a6..f4f2073711d3 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c | |||
| @@ -973,16 +973,20 @@ static ssize_t resume_show(struct kobject *kobj, struct kobj_attribute *attr, | |||
| 973 | static ssize_t resume_store(struct kobject *kobj, struct kobj_attribute *attr, | 973 | static ssize_t resume_store(struct kobject *kobj, struct kobj_attribute *attr, |
| 974 | const char *buf, size_t n) | 974 | const char *buf, size_t n) |
| 975 | { | 975 | { |
| 976 | unsigned int maj, min; | ||
| 977 | dev_t res; | 976 | dev_t res; |
| 978 | int ret = -EINVAL; | 977 | int len = n; |
| 978 | char *name; | ||
| 979 | 979 | ||
| 980 | if (sscanf(buf, "%u:%u", &maj, &min) != 2) | 980 | if (len && buf[len-1] == '\n') |
| 981 | goto out; | 981 | len--; |
| 982 | name = kstrndup(buf, len, GFP_KERNEL); | ||
| 983 | if (!name) | ||
| 984 | return -ENOMEM; | ||
| 982 | 985 | ||
| 983 | res = MKDEV(maj,min); | 986 | res = name_to_dev_t(name); |
| 984 | if (maj != MAJOR(res) || min != MINOR(res)) | 987 | kfree(name); |
| 985 | goto out; | 988 | if (!res) |
| 989 | return -EINVAL; | ||
| 986 | 990 | ||
| 987 | lock_system_sleep(); | 991 | lock_system_sleep(); |
| 988 | swsusp_resume_device = res; | 992 | swsusp_resume_device = res; |
| @@ -990,9 +994,7 @@ static ssize_t resume_store(struct kobject *kobj, struct kobj_attribute *attr, | |||
| 990 | printk(KERN_INFO "PM: Starting manual resume from disk\n"); | 994 | printk(KERN_INFO "PM: Starting manual resume from disk\n"); |
| 991 | noresume = 0; | 995 | noresume = 0; |
| 992 | software_resume(); | 996 | software_resume(); |
| 993 | ret = n; | 997 | return n; |
| 994 | out: | ||
| 995 | return ret; | ||
| 996 | } | 998 | } |
| 997 | 999 | ||
| 998 | power_attr(resume); | 1000 | power_attr(resume); |
