From: Linyu Yuan <quic_linyyuan@quicinc.com>
To: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <linux-usb@vger.kernel.org>, Jack Pham <quic_jackp@quicinc.com>,
"Linyu Yuan" <quic_linyyuan@quicinc.com>
Subject: [PATCH v5 2/3] usb: typec: ucsi: do not allocate one extra unused connector
Date: Fri, 22 Apr 2022 11:10:21 +0800 [thread overview]
Message-ID: <1650597022-19793-3-git-send-email-quic_linyyuan@quicinc.com> (raw)
In-Reply-To: <1650597022-19793-1-git-send-email-quic_linyyuan@quicinc.com>
In ucsi_init(), it allocate number of (ucsi->cap.num_connectors + 1)
connectors, there is one extra as the ending.
ucsi_unregister_connectors() is safe to unregister all ucsi connectors
according ucsi->cap.num_connectors.
Let's remove the extra one connector to save memory.
Signed-off-by: Linyu Yuan <quic_linyyuan@quicinc.com>
---
v2: new change
v3: no change
v4: fix a typo extral -> extra in commit description
v5: update commit description
drivers/usb/typec/ucsi/ucsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index af9a2a1..ce9192e 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -1251,7 +1251,7 @@ static int ucsi_init(struct ucsi *ucsi)
}
/* Allocate the connectors. Released in ucsi_unregister() */
- ucsi->connector = kcalloc(ucsi->cap.num_connectors + 1,
+ ucsi->connector = kcalloc(ucsi->cap.num_connectors,
sizeof(*ucsi->connector), GFP_KERNEL);
if (!ucsi->connector) {
ret = -ENOMEM;
--
2.7.4
next prev parent reply other threads:[~2022-04-22 3:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-22 3:10 [PATCH v5 0/3] usb: typec: ucsi: allow retry to find role switch Linyu Yuan
2022-04-22 3:10 ` [PATCH v5 1/3] usb: typec: ucsi: add a common function ucsi_unregister_connectors() Linyu Yuan
2022-04-25 8:09 ` Heikki Krogerus
2022-04-25 8:23 ` Linyu Yuan (QUIC)
2022-04-22 3:10 ` Linyu Yuan [this message]
2022-04-25 8:13 ` [PATCH v5 2/3] usb: typec: ucsi: do not allocate one extra unused connector Heikki Krogerus
2022-04-25 8:23 ` Linyu Yuan (QUIC)
2022-04-22 3:10 ` [PATCH v5 3/3] usb: typec: ucsi: Wait for the USB role switches Linyu Yuan
2022-04-25 8:14 ` Heikki Krogerus
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