From 46a78d1413350571eeffc5a8b2ff1eceeb9e305b Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 20 Jun 2022 11:03:48 +0200
Subject: [PATCH] random: update comment from copy_to_user() -> copy_to_iter()
commit 63b8ea5e4f1a87dea4d3114293fc8e96a8f193d7 upstream.
This comment wasn't updated when we moved from read() to read_iter(), so
this patch makes the trivial fix.
Fixes: 1b388e7765f2 ("random: convert to using fops->read_iter()")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/char/random.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/random.c b/drivers/char/random.c
index d6f2c62020b5d..7bd6eb15d432e 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -452,7 +452,7 @@ static ssize_t get_random_bytes_user(struct iov_iter *iter)
/*
* Immediately overwrite the ChaCha key at index 4 with random
- * bytes, in case userspace causes copy_to_user() below to sleep
+ * bytes, in case userspace causes copy_to_iter() below to sleep
* forever, so that we still retain forward secrecy in that case.
*/
crng_make_state(chacha_state, (u8 *)&chacha_state[4], CHACHA_KEY_SIZE);
--
2.30.2