diff mbox series

[06/12] scsi: spi: Fix sshdr use

Message ID 20231003205054.84507-7-michael.christie@oracle.com (mailing list archive)
State Superseded
Headers show
Series scsi: sshdr and retry fixes | expand

Commit Message

Mike Christie Oct. 3, 2023, 8:50 p.m. UTC 
If scsi_execute_cmd returns < 0, it doesn't initialize the sshdr, so we
shouldn't access the sshdr. If it returns 0, then the cmd executed
successfully, so there is no need to check the sshdr. This has us access
the sshdr when we get a return value > 0.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
 drivers/scsi/scsi_transport_spi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index 2442d4d2e3f3..f668c1c0a98f 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -676,10 +676,10 @@  spi_dv_device_echo_buffer(struct scsi_device *sdev, u8 *buffer,
 	for (r = 0; r < retries; r++) {
 		result = spi_execute(sdev, spi_write_buffer, REQ_OP_DRV_OUT,
 				     buffer, len, &sshdr);
-		if(result || !scsi_device_online(sdev)) {
+		if (result || !scsi_device_online(sdev)) {
 
 			scsi_device_set_state(sdev, SDEV_QUIESCE);
-			if (scsi_sense_valid(&sshdr)
+			if (result > 0 && scsi_sense_valid(&sshdr)
 			    && sshdr.sense_key == ILLEGAL_REQUEST
 			    /* INVALID FIELD IN CDB */
 			    && sshdr.asc == 0x24 && sshdr.ascq == 0x00)