[PATCH] um: fix typo "hander" in comment

[Hemanth Selam <hemanth.selam@gmail.com>]

Correct "hander" to "handler", reported by scripts/checkpatch.pl using the
misspelling list in scripts/spelling.txt.  Only touches comments, no code
changes.

Assisted-by: Cursor:claude-opus-5
Signed-off-by: Hemanth Selam <hemanth.selam@gmail.com>
---
 arch/um/os-Linux/signal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
index 6c993bc8c78e..57f0a5e46afb 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -453,7 +453,7 @@ void unblock_signals_hard(void)
 	 * call _within_ e.g. vu_req_read_message(), where we observed this
 	 * issue, which loops. Thus, if the inner call handles the recorded
 	 * pending signals, we can get out of the inner call with the real
-	 * signal hander no longer blocked, and still have a race. Thus don't
+	 * signal handler no longer blocked, and still have a race. Thus don't
 	 * handle unblocking in the inner call, if it happens, but only in
 	 * the outermost call - 'unblocking' serves as an ownership for the
 	 * signals_blocked_pending decrement.
-- 
2.48.1