diff mbox series

[V2,09/15] s390: zfcp_fc: use sg helper to operate sgl

Message ID 20190613071335.5679-10-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State Superseded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.

Cc: Steffen Maier <maier@linux.ibm.com>
Cc: Benjamin Block <bblock@linux.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
 drivers/s390/scsi/zfcp_fc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index 33eddb02ee30..b018b61bd168 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -620,7 +620,7 @@  static void zfcp_fc_sg_free_table(struct scatterlist *sg, int count)
 {
 	int i;
 
-	for (i = 0; i < count; i++, sg++)
+	for (i = 0; i < count; i++, sg = sg_next(sg))
 		if (sg)
 			free_page((unsigned long) sg_virt(sg));
 		else
@@ -641,7 +641,7 @@  static int zfcp_fc_sg_setup_table(struct scatterlist *sg, int count)
 	int i;
 
 	sg_init_table(sg, count);
-	for (i = 0; i < count; i++, sg++) {
+	for (i = 0; i < count; i++, sg = sg_next(sg)) {
 		addr = (void *) get_zeroed_page(GFP_KERNEL);
 		if (!addr) {
 			zfcp_fc_sg_free_table(sg, i);