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iscsi-target: avoid NULL pointer in iscsi_copy_param_list failure 

commit 8ae757d09c45102b347a1bc2867f54ffc1ab8fda upstream.

In iscsi_copy_param_list() a failed iscsi_param_list memory allocation
currently invokes iscsi_release_param_list() to cleanup, and will promptly
trigger a NULL pointer dereference.

Instead, go ahead and return for the first iscsi_copy_param_list()
failure case.

Found by coverity.

Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Joern Engel 2014-09-02 17:49:54 -04:00 committed by Greg Kroah-Hartman
parent b997982f68
commit c9049bb0aa
1 changed files with 1 additions and 1 deletions
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2
drivers/target/iscsi/iscsi_target_parameters.c
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@ -603,7 +603,7 @@ int iscsi_copy_param_list(
param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
if (!param_list) {
pr_err("Unable to allocate memory for struct iscsi_param_list.\n");
goto err_out;
return -1;
}
INIT_LIST_HEAD(&param_list->param_list);
INIT_LIST_HEAD(&param_list->extra_response_list);