linux-kernel - [PATCH 3/9] usb: vhci-hcd: Simplify NULL comparison

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Message-Id: <20250717-vhci-hcd-suspend-fix-v1-3-2b000cd05952@collabora.com>
Date: Thu, 17 Jul 2025 18:54:52 +0300
From: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To: Valentina Manea <valentina.manea.m@...il.com>, 
 Shuah Khan <shuah@...nel.org>, Hongren Zheng <i@...ithal.me>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Brian G. Merrell" <bgmerrell@...ell.com>
Cc: kernel@...labora.com, Greg Kroah-Hartman <gregkh@...e.de>, 
 linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/9] usb: vhci-hcd: Simplify NULL comparison

Use the shorter variants as suggested by checkpatch.pl:

  CHECK: Comparison to NULL could be written "!c"
  CHECK: Comparison to NULL could be written "!vhcis"

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
---
 drivers/usb/usbip/vhci_hcd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
index f58ba3b5ed50c5cc68d2180a4df78ab4a5f5061d..7e0f11fdbf4fe919265db31768c3a19d27dbdd18 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -1133,7 +1133,7 @@ static int hcd_name_to_id(const char *name)
 	int ret;

 	c = strchr(name, '.');
-	if (c == NULL)
+	if (!c)
 		return 0;

 	ret = kstrtol(c + 1, 10, &val);
@@ -1523,7 +1523,7 @@ static int __init vhci_hcd_init(void)
 		vhci_num_controllers = 1;

 	vhcis = kcalloc(vhci_num_controllers, sizeof(struct vhci), GFP_KERNEL);
-	if (vhcis == NULL)
+	if (!vhcis)
 		return -ENOMEM;

 	ret = platform_driver_register(&vhci_driver);

-- 
2.50.0