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List: linux-backports
Subject: [RFC v2 4/8] backports: add usb_translate_errors()
From: Patrick Ziegler <patrick.ziegler () fh-kl ! de>
Date: 2013-07-31 8:39:39
Message-ID: 51F8CD4B.9050706 () fh-kl ! de
[Download RAW message or body]
This inline function is missing for version < 2.6.39 but required by em28xx
and cdc-wdm device driver.
Signed-off-by: Patrick Ziegler <patrick.ziegler@fh-kl.de>
---
backport/backport-include/linux/usb.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/backport/backport-include/linux/usb.h b/backport/backport-include/linux/usb.h
index 368da6c..49a5762 100644
--- a/backport/backport-include/linux/usb.h
+++ b/backport/backport-include/linux/usb.h
@@ -145,4 +145,21 @@ extern void usb_unpoison_urb(struct urb *urb);
extern int usb_anchor_empty(struct usb_anchor *anchor);
#endif /* 2.6.23-2.6.27 */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)
+#if defined(CONFIG_USB) || defined(CONFIG_USB_MODULE)
+static inline int usb_translate_errors(int error_code)
+{
+ switch (error_code) {
+ case 0:
+ case -ENOMEM:
+ case -ENODEV:
+ case -EOPNOTSUPP:
+ return error_code;
+ default:
+ return -EIO;
+ }
+}
+#endif /* CONFIG_USB */
+#endif /* < 2.6.39 */
+
#endif /* __BACKPORT_USB_H */
--
1.8.1.2
--
Dipl.-Inf. (FH) Patrick Ziegler
University Of Applied Sciences
Kaiserslautern
Amerikastrasse 1
D-66482 Zweibruecken
Germany
Phone: +49 631 3724 5526
Mail: patrick.ziegler@fh-kl.de
PGP KeyID 0xB4796B8C
http://www.fh-kl.de
http://www.fh-kl.de/fachbereiche/imst/iuk-knowhow.html
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