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focus: add a NULL check in focus <direction>

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container is checked for NULL in other conditions earlier, it's not
obvious that it can't be undefined here.
This commit is contained in:
lbonn 2019-10-19 16:25:55 +02:00 committed by Drew DeVault
parent 30fa7d191e
commit cf95de9cae
1 changed files with 3 additions and 0 deletions
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3
sway/commands/focus.c
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@ -414,6 +414,9 @@ struct cmd_results *cmd_focus(int argc, char **argv) {
return cmd_results_new(CMD_SUCCESS, NULL); return cmd_results_new(CMD_SUCCESS, NULL);
} }
if (!sway_assert(container, "Expected container to be non null")) {
return cmd_results_new(CMD_FAILURE, "");
}
struct sway_node *next_focus = NULL; struct sway_node *next_focus = NULL;
if (container_is_floating(container)) { if (container_is_floating(container)) {
next_focus = node_get_in_direction_floating(container, seat, direction); next_focus = node_get_in_direction_floating(container, seat, direction);