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Subject[ 059/108] target: Clean up returning errors in PR handling code
3.2-stable review patch.  If anyone has any objections, please let me know.

------------------
From: Roland Dreier <roland@purestorage.com>

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>
---
drivers/target/target_core_pr.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 8556499..a1bcd92 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -2031,7 +2031,7 @@ 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];
@@ -3818,7 +3818,7 @@ int target_scsi3_emulate_pr_out(struct se_cmd *cmd)
" SPC-2 reservation is held, returning"
" RESERVATION_CONFLICT\n");
cmd->scsi_sense_reason = TCM_RESERVATION_CONFLICT;
- ret = EINVAL;
+ ret = -EINVAL;
goto out;
}

@@ -3828,7 +3828,8 @@ int target_scsi3_emulate_pr_out(struct se_cmd *cmd)
*/
if (!cmd->se_sess) {
cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
- return -EINVAL;
+ ret = -EINVAL;
+ goto out;
}

if (cmd->data_length < 24) {



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