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dcdbas: use memory_read_from_buffer()

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Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Doug Warzecha <Douglas_Warzecha@dell.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita 2008-07-25 01:48:24 -07:00 committed by Linus Torvalds
parent f37e66173e
commit abe19b7b82
1 changed files with 2 additions and 11 deletions
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13
drivers/firmware/dcdbas.c
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@ -152,20 +152,11 @@ static ssize_t smi_data_read(struct kobject *kobj,
struct bin_attribute *bin_attr, struct bin_attribute *bin_attr,
char *buf, loff_t pos, size_t count) char *buf, loff_t pos, size_t count)
{ {
size_t max_read;
ssize_t ret; ssize_t ret;
mutex_lock(&smi_data_lock); mutex_lock(&smi_data_lock);
ret = memory_read_from_buffer(buf, count, &pos, smi_data_buf,
if (pos >= smi_data_buf_size) { 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:
mutex_unlock(&smi_data_lock); mutex_unlock(&smi_data_lock);
return ret; return ret;
} }