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 get a return value > 0.
Signed-off-by: Mike Christie <michael.christie@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/scsi/sd.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 68b12afa0721..755b09beff2a 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2427,11 +2427,10 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
the_result = scsi_execute_cmd(sdp, cmd, REQ_OP_DRV_IN,
buffer, RC16_LEN, SD_TIMEOUT,
sdkp->max_retries, &exec_args);
-
- if (media_not_present(sdkp, &sshdr))
- return -ENODEV;
-
if (the_result > 0) {
+ if (media_not_present(sdkp, &sshdr))
+ return -ENODEV;
+
sense_valid = scsi_sense_valid(&sshdr);
if (sense_valid &&
sshdr.sense_key == ILLEGAL_REQUEST &&
--
2.34.1
