summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--drivers/scsi/sg.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 5c9f1b9..8147147 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -524,6 +524,7 @@ sg_read(struct file *filp, char __user *buf, size_t count, loff_t * ppos)
} else
count = (old_hdr->result == 0) ? 0 : -EIO;
sg_finish_rem_req(srp);
+ sg_remove_request(sfp, srp);
retval = count;
free_old_hdr:
kfree(old_hdr);
@@ -564,6 +565,7 @@ sg_new_read(Sg_fd * sfp, char __user *buf, size_t count, Sg_request * srp)
}
err_out:
err2 = sg_finish_rem_req(srp);
+ sg_remove_request(sfp, srp);
return err ? : err2 ? : count;
}
@@ -800,6 +802,7 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
SCSI_LOG_TIMEOUT(1, sg_printk(KERN_INFO, sfp->parentdp,
"sg_common_write: start_req err=%d\n", k));
sg_finish_rem_req(srp);
+ sg_remove_request(sfp, srp);
return k; /* probably out of space --> ENOMEM */
}
if (atomic_read(&sdp->detaching)) {
@@ -810,6 +813,7 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
}
sg_finish_rem_req(srp);
+ sg_remove_request(sfp, srp);
return -ENODEV;
}
@@ -1285,6 +1289,7 @@ sg_rq_end_io_usercontext(struct work_struct *work)
struct sg_fd *sfp = srp->parentfp;
sg_finish_rem_req(srp);
+ sg_remove_request(sfp, srp);
kref_put(&sfp->f_ref, sg_remove_sfp);
}
@@ -1831,8 +1836,6 @@ sg_finish_rem_req(Sg_request *srp)
else
sg_remove_scat(sfp, req_schp);
- sg_remove_request(sfp, srp);
-
return ret;
}
@@ -2177,12 +2180,17 @@ sg_remove_sfp_usercontext(struct work_struct *work)
struct sg_fd *sfp = container_of(work, struct sg_fd, ew.work);
struct sg_device *sdp = sfp->parentdp;
Sg_request *srp;
+ unsigned long iflags;
/* Cleanup any responses which were never read(). */
+ write_lock_irqsave(&sfp->rq_list_lock, iflags);
while (!list_empty(&sfp->rq_list)) {
srp = list_first_entry(&sfp->rq_list, Sg_request, entry);
sg_finish_rem_req(srp);
+ list_del(&srp->entry);
+ srp->parentfp = NULL;
}
+ write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
if (sfp->reserve.bufflen > 0) {
SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp,
OpenPOWER on IntegriCloud