diff mbox series

[V2,13/15] scsi: ppa: use sg helper to operate sgl

Message ID 20190613071335.5679-14-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State Superseded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/ppa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c
index 35213082e933..a406cc825426 100644
--- a/drivers/scsi/ppa.c
+++ b/drivers/scsi/ppa.c
@@ -590,7 +590,7 @@  static int ppa_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);