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USB: cdc-wdm: sanitize error returns

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wdm_flush() returns unsanitized USB error codes.
They must be cleaned up to before being anded to user space

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oliver Neukum 2012-04-27 14:23:54 +02:00 committed by Greg Kroah-Hartman
parent 4212cd74ca
commit 24a85bae5d
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/class/cdc-wdm.c
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@ -531,7 +531,7 @@ static int wdm_flush(struct file *file, fl_owner_t id)
dev_err(&desc->intf->dev, "Error in flush path: %d\n", dev_err(&desc->intf->dev, "Error in flush path: %d\n",
desc->werr); desc->werr);
return desc->werr; return usb_translate_errors(desc->werr);
} }
static unsigned int wdm_poll(struct file *file, struct poll_table_struct *wait) static unsigned int wdm_poll(struct file *file, struct poll_table_struct *wait)