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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-05-12 12:58:56 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-05-12 12:58:56 +0000 |
| commit | 89b1a8ab25add376d10563320dc01c4843118596 (patch) | |
| tree | 6635001e24e49d9944fe3db24265843737b450b9 /nuttx/drivers/usbhost/usbhost_hidkbd.c | |
| parent | 7596c8e003e4bbe8722cce117d283d6209257445 (diff) | |
| download | nuttx-89b1a8ab25add376d10563320dc01c4843118596.tar.gz nuttx-89b1a8ab25add376d10563320dc01c4843118596.tar.bz2 nuttx-89b1a8ab25add376d10563320dc01c4843118596.zip | |
Fix USB host error handling logic
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3593 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/drivers/usbhost/usbhost_hidkbd.c')
| -rw-r--r-- | nuttx/drivers/usbhost/usbhost_hidkbd.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/nuttx/drivers/usbhost/usbhost_hidkbd.c b/nuttx/drivers/usbhost/usbhost_hidkbd.c index ef880ea75..baf18703d 100644 --- a/nuttx/drivers/usbhost/usbhost_hidkbd.c +++ b/nuttx/drivers/usbhost/usbhost_hidkbd.c @@ -1545,6 +1545,10 @@ static FAR struct usbhost_class_s *usbhost_create(FAR struct usbhost_driver_s *d * On success, zero (OK) is returned. On a failure, a negated errno value is * returned indicating the nature of the failure * + * NOTE that the class instance remains valid upon return with a failure. It is + * the responsibility of the higher level enumeration logic to call + * CLASS_DISCONNECTED to free up the class driver resources. + * * Assumptions: * - This function will *not* be called from an interrupt handler. * - If this function returns an error, the USB host controller driver |