diff options
Diffstat (limited to 'drivers/firmware/dcdbas.c')
| -rw-r--r-- | drivers/firmware/dcdbas.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c index 25918f7dfd0f..c66817e7717b 100644 --- a/drivers/firmware/dcdbas.c +++ b/drivers/firmware/dcdbas.c @@ -152,20 +152,11 @@ static ssize_t smi_data_read(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t count) { - size_t max_read; ssize_t ret; mutex_lock(&smi_data_lock); - - if (pos >= smi_data_buf_size) { - ret = 0; - goto out; - } - - max_read = smi_data_buf_size - pos; - ret = min(max_read, count); - memcpy(buf, smi_data_buf + pos, ret); -out: + ret = memory_read_from_buffer(buf, count, &pos, smi_data_buf, + smi_data_buf_size); mutex_unlock(&smi_data_lock); return ret; } @@ -254,6 +245,7 @@ static ssize_t host_control_on_shutdown_store(struct device *dev, static int smi_request(struct smi_cmd *smi_cmd) { cpumask_t old_mask; + cpumask_of_cpu_ptr(new_mask, 0); int ret = 0; if (smi_cmd->magic != SMI_CMD_MAGIC) { @@ -264,7 +256,7 @@ static int smi_request(struct smi_cmd *smi_cmd) /* SMI requires CPU 0 */ old_mask = current->cpus_allowed; - set_cpus_allowed_ptr(current, &cpumask_of_cpu(0)); + set_cpus_allowed_ptr(current, new_mask); if (smp_processor_id() != 0) { dev_dbg(&dcdbas_pdev->dev, "%s: failed to get CPU 0\n", __func__); |