diff options
Diffstat (limited to 'kernel/fs/pstore/pmsg.c')
| -rw-r--r-- | kernel/fs/pstore/pmsg.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/fs/pstore/pmsg.c b/kernel/fs/pstore/pmsg.c index feb5dd294..7de20cd37 100644 --- a/kernel/fs/pstore/pmsg.c +++ b/kernel/fs/pstore/pmsg.c @@ -37,6 +37,8 @@ static ssize_t write_pmsg(struct file *file, const char __user *buf, if (buffer_size > PMSG_MAX_BOUNCE_BUFFER_SIZE) buffer_size = PMSG_MAX_BOUNCE_BUFFER_SIZE; buffer = vmalloc(buffer_size); + if (!buffer) + return -ENOMEM; mutex_lock(&pmsg_lock); for (i = 0; i < count; ) { @@ -112,3 +114,10 @@ err_class: err: return; } + +void pstore_unregister_pmsg(void) +{ + device_destroy(pmsg_class, MKDEV(pmsg_major, 0)); + class_destroy(pmsg_class); + unregister_chrdev(pmsg_major, PMSG_NAME); +} |