diff mbox series

[V2,14/15] scsi: wd33c93: use sg helper to operate sgl

Message ID 20190613071335.5679-15-ming.lei@redhat.com (mailing list archive)
State Superseded
Headers show
Series scsi: use sg helper to operate sgl | expand

Commit Message

Ming Lei June 13, 2019, 7:13 a.m. UTC 
The current way isn't safe for chained sgl, so use sg helper to
operate sgl.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
 drivers/scsi/wd33c93.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index 74be04f2357c..ae5935c0a149 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -744,7 +744,7 @@  transfer_bytes(const wd33c93_regs regs, struct scsi_cmnd *cmd,
  * source or destination for THIS transfer.
  */
 	if (!cmd->SCp.this_residual && cmd->SCp.buffers_residual) {
-		++cmd->SCp.buffer;
+		cmd->SCp.buffer = sg_next(cmd->SCp.buffer);
 		--cmd->SCp.buffers_residual;
 		cmd->SCp.this_residual = cmd->SCp.buffer->length;
 		cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);