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target: Clean up returning errors in PR handling code

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- 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>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Roland Dreier 2012-07-16 15:17:10 -07:00 committed by Nicholas Bellinger
parent 3cc5d2a6b9
commit d35212f3ca
1 changed files with 4 additions and 3 deletions
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7
drivers/target/target_core_pr.c
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@ -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) {