[tip: locking/futex] futex: Remove unnecessary NULL check before kvfree()

[tip-bot2 for Vasileios Almpanis]

The following commit has been merged into the locking/futex branch of tip:

Commit-ID:     4903ab0c83f033424879ba7435668f9ebe14f641
Gitweb:        https://git.kernel.org/tip/4903ab0c83f033424879ba7435668f9ebe14f641
Author:        Vasileios Almpanis <vasilisalmpanis@xxxxxxxxx>
AuthorDate:    Tue, 30 Jun 2026 15:35:21 +02:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxx>
CommitterDate: Sun, 05 Jul 2026 14:50:19 +02:00

futex: Remove unnecessary NULL check before kvfree()

The NULL check before kvfree() is unnecessary and triggers a Coccinelle
warning, since kvfree() handles NULL arguments internally.

Reported by ifnullfree.cocci Coccinelle semantic patch script.

Signed-off-by: Vasileios Almpanis <vasilisalmpanis@xxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxx>
Reviewed-by: André Almeida <andrealmeid@xxxxxxxxxx>
Link: https://patch.msgid.link/20260630133530.2577832-1-vasilisalmpanis@xxxxxxxxx
---
 kernel/futex/core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/futex/core.c b/kernel/futex/core.c
index 179b26e..233b926 100644
--- a/kernel/futex/core.c
+++ b/kernel/futex/core.c
@@ -1746,8 +1746,7 @@ void futex_hash_free(struct mm_struct *mm)
 	free_percpu(mm->futex.phash.ref);
 	kvfree(mm->futex.phash.hash_new);
 	fph = rcu_dereference_raw(mm->futex.phash.hash);
-	if (fph)
-		kvfree(fph);
+	kvfree(fph);
 }
 
 static bool futex_pivot_pending(struct mm_struct *mm)