SCSI: fix crashes in sd and sr runtime PM

[pandora-kernel.git] / drivers / scsi / sd.c

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a50825b..9a4f52d 100644 (file)
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2767,8 +2767,8 @@ static int sd_suspend(struct device *dev, pm_message_t mesg)
        struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);
        int ret = 0;
 
-       if (!sdkp)
-               return 0;       /* this can happen */
+       if (!sdkp)      /* E.g.: runtime suspend following sd_remove() */
+               return 0;
 
        if (sdkp->WCE) {
                sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n");
@@ -2792,6 +2792,9 @@ static int sd_resume(struct device *dev)
        struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);
        int ret = 0;
 
+       if (!sdkp)      /* E.g.: runtime resume at the start of sd_probe() */
+               return 0;
+
        if (!sdkp->device->manage_start_stop)
                goto done;