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sio: remove non-working kmap()

This commit is contained in:
Thomas Schoebel-Theuer 2013-10-15 17:57:52 +02:00
parent 232349e544
commit 3b0a78803d
1 changed files with 4 additions and 11 deletions
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15
kernel/mars_sio.c
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@ -116,27 +116,20 @@ static int transfer_none(int cmd,
void *loop_buf,
int size)
{
#ifdef KM_USER0
void *raw_buf = kmap_atomic(raw_page, KM_USER0) + raw_off;
#else
void *raw_buf = kmap_atomic(raw_page) + raw_off;
#endif
void *raw_buf;
if (unlikely(!raw_buf || !loop_buf)) {
if (unlikely(!raw_page || !loop_buf)) {
MARS_ERR("transfer NULL: %p %p\n", raw_buf, loop_buf);
return -EFAULT;
}
raw_buf = page_address(raw_page) + raw_off;
if (cmd == READ)
memcpy(loop_buf, raw_buf, size);
else
memcpy(raw_buf, loop_buf, size);
#ifdef KM_USER0
kunmap_atomic(raw_buf, KM_USER0);
#else
kunmap_atomic(raw_buf);
#endif
cond_resched();
return 0;
}