linux-kernel - [PATCH 1/2] usb: pci-quirks: Reduce the length of a spinlock section in usb_amd_find_chipset

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Date:   Tue, 21 Mar 2023 22:43:09 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Mathias Nyman <mathias.nyman@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        linux-usb@...r.kernel.org
Subject: [PATCH 1/2] usb: pci-quirks: Reduce the length of a spinlock section in usb_amd_find_chipset_info()

'info' is local to the function. There is no need to zeroing it within
a spin_lock section.

Move the memset() after spin_unlock_irqrestore().

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/usb/host/pci-quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index ef08d68b9714..6b741327d2c4 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -218,9 +218,9 @@ static void usb_amd_find_chipset_info(void)
 		spin_unlock_irqrestore(&amd_lock, flags);
 		return;
 	}
-	memset(&info, 0, sizeof(info));
 	spin_unlock_irqrestore(&amd_lock, flags);
 
+	memset(&info, 0, sizeof(info));
 	if (!amd_chipset_sb_type_init(&info)) {
 		goto commit;
 	}
-- 
2.34.1