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arch: um: kmsg_dump: Use console_is_usable

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All consoles found on for_each_console are registered, meaning that all
of them have the CON_ENABLED flag set. Since NBCON was introduced it's
important to check if a given console also implements the NBCON callbacks.
The function console_is_usable does exactly that.

Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://patch.msgid.link/20251121-printk-cleanup-part2-v2-2-57b8b78647f4@suse.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
This commit is contained in:
Marcos Paulo de Souza
2025-11-21 15:50:34 -03:00
committed by Petr Mladek
parent 822e2bb0d6
commit 4c70ab110b
1 changed files with 1 additions and 1 deletions
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2
arch/um/kernel/kmsg_dump.c
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@@ -31,7 +31,7 @@ static void kmsg_dumper_stdout(struct kmsg_dumper *dumper,
* expected to output the crash information.
*/
if (strcmp(con->name, "ttynull") != 0 &&
(console_srcu_read_flags(con) & CON_ENABLED)) {
console_is_usable(con, console_srcu_read_flags(con), true)) {
break;
}
}