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Message-ID: <20110324143116.GA8200@swordfish.minsk.epam.com>
Date: Thu, 24 Mar 2011 16:31:16 +0200
From: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To: Greg Kroah-Hartman <gregkh@...e.de>
Cc: Alan Stern <stern@...land.harvard.edu>,
Chris Wright <chrisw@...s-sol.org>, linux-usb@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: check device_create_file() return code in
usb_create_sysfs_intf_files()
Hello,
I just noticed that usb_create_sysfs_intf_files() ignores device_create_file()
return code and sets intf->sysfs_files_created to 1, even if sysfs_add_file_mode()
returned -ENOMEM (or later sysfs_add_one() returned -EEXIST).
Shouldn't we check retval for 0 before setting intf->sysfs_files_created?
---
drivers/usb/core/sysfs.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 6781c36..5a02524 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -856,8 +856,10 @@ int usb_create_sysfs_intf_files(struct usb_interface *intf)
alt->string = usb_cache_string(udev, alt->desc.iInterface);
if (alt->string)
retval = device_create_file(&intf->dev, &dev_attr_interface);
- intf->sysfs_files_created = 1;
- return 0;
+ if (retval == 0)
+ intf->sysfs_files_created = 1;
+
+ return retval;
}
void usb_remove_sysfs_intf_files(struct usb_interface *intf)
--
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