diff options
Diffstat (limited to 'drivers/block/z2ram.c')
| -rw-r--r-- | drivers/block/z2ram.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c index 27de5046708a..968f9e52effa 100644 --- a/drivers/block/z2ram.c +++ b/drivers/block/z2ram.c @@ -87,13 +87,15 @@ static void do_z2_request(struct request_queue *q) while (len) { unsigned long addr = start & Z2RAM_CHUNKMASK; unsigned long size = Z2RAM_CHUNKSIZE - addr; + void *buffer = bio_data(req->bio); + if (len < size) size = len; addr += z2ram_map[ start >> Z2RAM_CHUNKSHIFT ]; if (rq_data_dir(req) == READ) - memcpy(req->buffer, (char *)addr, size); + memcpy(buffer, (char *)addr, size); else - memcpy((char *)addr, req->buffer, size); + memcpy((char *)addr, buffer, size); start += size; len -= size; } |