Use the scatterlist iterators and remove direct indexing of the
scatterlist array.
This way allows us to pre-allocate one small scatterlist, which can be
chained with one runtime allocated scatterlist if the pre-allocated one
isn't enough for the whole request.
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
---
drivers/scsi/imm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c
index 64ae418d29f3..56d29f157749 100644
--- a/drivers/scsi/imm.c
+++ b/drivers/scsi/imm.c
@@ -686,7 +686,7 @@ static int imm_completion(struct scsi_cmnd *cmd)
if (cmd->SCp.buffer && !cmd->SCp.this_residual) {
/* if scatter/gather, advance to the next segment */
if (cmd->SCp.buffers_residual--) {
- cmd->SCp.buffer++;
+ cmd->SCp.buffer = sg_next(cmd->SCp.buffer);
cmd->SCp.this_residual =
cmd->SCp.buffer->length;
cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
--
2.20.1
