From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Mathias Nyman <mathias.nyman@linux.intel.com>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v1 1/1] usb: acpi: Switch to use acpi_evaluate_dsm_typed()
Date: Wed, 18 Jan 2023 10:04:19 +0200 [thread overview]
Message-ID: <20230118080419.20880-1-andriy.shevchenko@linux.intel.com> (raw)
The acpi_evaluate_dsm_typed() provides a way to check the type of the
object evaluated by _DSM call. Use it instead of open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/usb/core/usb-acpi.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c
index 533baa85083c..a34b22537d7c 100644
--- a/drivers/usb/core/usb-acpi.c
+++ b/drivers/usb/core/usb-acpi.c
@@ -81,15 +81,11 @@ int usb_acpi_port_lpm_incapable(struct usb_device *hdev, int index)
return -ENODEV;
}
- obj = acpi_evaluate_dsm(port_handle, &guid, 0,
- USB_DSM_DISABLE_U1_U2_FOR_PORT, NULL);
-
- if (!obj)
- return -ENODEV;
-
- if (obj->type != ACPI_TYPE_INTEGER) {
+ obj = acpi_evaluate_dsm_typed(port_handle, &guid, 0,
+ USB_DSM_DISABLE_U1_U2_FOR_PORT, NULL,
+ ACPI_TYPE_INTEGER);
+ if (!obj) {
dev_dbg(&hdev->dev, "evaluate port-%d _DSM failed\n", port1);
- ACPI_FREE(obj);
return -EINVAL;
}
--
2.39.0
next reply other threads:[~2023-01-18 8:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-18 8:04 Andy Shevchenko [this message]
2023-01-19 13:11 ` [PATCH v1 1/1] usb: acpi: Switch to use acpi_evaluate_dsm_typed() Greg Kroah-Hartman
2023-01-19 14:37 ` Andy Shevchenko
2023-01-19 15:14 ` Greg Kroah-Hartman
2023-01-19 15:17 ` Andy Shevchenko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230118080419.20880-1-andriy.shevchenko@linux.intel.com \
--to=andriy.shevchenko@linux.intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=mathias.nyman@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox