find prev/next output/workspace: add NULL check

These could be called with NULL if there is no focus

Found through static analysis.
This commit is contained in:
Dominique Martinet 2018-06-30 22:39:37 +09:00
parent ab18740529
commit 9c9ee3e4ef

View file

@ -271,6 +271,9 @@ struct sway_container *workspace_by_name(const char *name) {
*/
struct sway_container *workspace_output_prev_next_impl(
struct sway_container *output, bool next) {
if (!output) {
return NULL;
}
if (!sway_assert(output->type == C_OUTPUT,
"Argument must be an output, is %d", output->type)) {
return NULL;
@ -303,6 +306,9 @@ struct sway_container *workspace_output_prev_next_impl(
*/
struct sway_container *workspace_prev_next_impl(
struct sway_container *workspace, bool next) {
if (!workspace) {
return NULL;
}
if (!sway_assert(workspace->type == C_WORKSPACE,
"Argument must be a workspace, is %d", workspace->type)) {
return NULL;