target: Clean up returning errors in PR handling code

commit d35212f3ca3bf4fb49d15e37f530c9931e2d2183 upstream.

 - instead of (PTR_ERR(file) < 0) just use IS_ERR(file)
 - return -EINVAL instead of EINVAL
 - all other error returns in target_scsi3_emulate_pr_out() use
   "goto out" -- get rid of the one remaining straight "return."

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index b75bc92..9145141 100644 (file)
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -2042,7 +2042,7 @@ static int __core_scsi3_write_aptpl_to_file(
        if (IS_ERR(file) || !file || !file->f_dentry) {
                pr_err("filp_open(%s) for APTPL metadata"
                        " failed\n", path);
-               return (PTR_ERR(file) < 0 ? PTR_ERR(file) : -ENOENT);
+               return IS_ERR(file) ? PTR_ERR(file) : -ENOENT;
        }
 
        iov[0].iov_base = &buf[0];
@@ -3853,7 +3853,7 @@ int target_scsi3_emulate_pr_out(struct se_task *task)
                        " SPC-2 reservation is held, returning"
                        " RESERVATION_CONFLICT\n");
                cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
-               ret = EINVAL;
+               ret = -EINVAL;
                goto out;
        }
 
@@ -3863,7 +3863,8 @@ int target_scsi3_emulate_pr_out(struct se_task *task)
         */
        if (!cmd->se_sess) {
                cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-               return -EINVAL;
+               ret = -EINVAL;
+               goto out;
        }
 
        if (cmd->data_length < 24) {