linux-kernel - [PATCH v1 1/1] platform/x86: xo15-ebook: Replace open coded acpi_match

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 30 Jun 2022 22:43:35 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>
Subject: [PATCH v1 1/1] platform/x86: xo15-ebook: Replace open coded acpi_match_device()

Replace open coded acpi_match_device() in ebook_switch_add().

Note, while it is a bit longer it is more robust in case more ID
are coming.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/platform/x86/xo15-ebook.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/xo15-ebook.c b/drivers/platform/x86/xo15-ebook.c
index 97440462aa25..40b2dd4ae5ea 100644
--- a/drivers/platform/x86/xo15-ebook.c
+++ b/drivers/platform/x86/xo15-ebook.c
@@ -81,9 +81,9 @@ static SIMPLE_DEV_PM_OPS(ebook_switch_pm, NULL, ebook_switch_resume);
 
 static int ebook_switch_add(struct acpi_device *device)
 {
+	const struct acpi_device_id *id;
 	struct ebook_switch *button;
 	struct input_dev *input;
-	const char *hid = acpi_device_hid(device);
 	char *name, *class;
 	int error;
 
@@ -102,8 +102,9 @@ static int ebook_switch_add(struct acpi_device *device)
 	name = acpi_device_name(device);
 	class = acpi_device_class(device);
 
-	if (strcmp(hid, XO15_EBOOK_HID)) {
-		pr_err("Unsupported hid [%s]\n", hid);
+	id = acpi_match_device(device, ebook_device_ids);
+	if (!id) {
+		dev_err(&device->dev, "Unsupported hid\n");
 		error = -ENODEV;
 		goto err_free_input;
 	}
@@ -111,7 +112,7 @@ static int ebook_switch_add(struct acpi_device *device)
 	strcpy(name, XO15_EBOOK_DEVICE_NAME);
 	sprintf(class, "%s/%s", XO15_EBOOK_CLASS, XO15_EBOOK_SUBCLASS);
 
-	snprintf(button->phys, sizeof(button->phys), "%s/button/input0", hid);
+	snprintf(button->phys, sizeof(button->phys), "%s/button/input0", id->id);
 
 	input->name = name;
 	input->phys = button->phys;
-- 
2.35.1