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scsi: sd: Fix sshdr use in sd_spinup_disk

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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>
Link: https://lore.kernel.org/r/20231004210013.5601-3-michael.christie@oracle.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Mike Christie 2023-10-04 16:00:03 -05:00 committed by Martin K. Petersen
parent bd593bd2c1
commit b4d0c33a32
1 changed files with 13 additions and 11 deletions
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24
drivers/scsi/sd.c
View file

@ -2180,19 +2180,21 @@ 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) ||