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@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: John Garry <john.g.garry@xxxxxxxxxx>
Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
Reviewed-by: Martin Wilck <mwilck@xxxxxxxx>
---
drivers/scsi/sd.c | 24 +++++++++++++-----------
1 file changed, 13 insertions(+), 11 deletions(-)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 0754949c9f55..6e306fe8cb5a 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2227,19 +2227,21 @@ sd_spinup_disk(struct scsi_disk *sdkp)
sdkp->max_retries,
&exec_args);
- /*
- * If the drive has indicated to us that it
- * doesn't have any media in it, don't bother
- * with any more polling.
- */
- if (media_not_present(sdkp, &sshdr)) {
- if (media_was_present)
- sd_printk(KERN_NOTICE, sdkp, "Media removed, stopped polling\n");
- return;
- }
+ if (the_result > 0) {
+ /*
+ * If the drive has indicated to us that it
+ * doesn't have any media in it, don't bother
+ * with any more polling.
+ */
+ if (media_not_present(sdkp, &sshdr)) {
+ if (media_was_present)
+ sd_printk(KERN_NOTICE, sdkp,
+ "Media removed, stopped polling\n");
+ return;
+ }
- if (the_result)
sense_valid = scsi_sense_valid(&sshdr);
+ }
retries++;
} while (retries < 3 &&
(!scsi_status_is_good(the_result) ||
--
2.34.1
