diff options
Diffstat (limited to 'nuttx/sched/sched_releasefiles.c')
| -rw-r--r-- | nuttx/sched/sched_releasefiles.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/nuttx/sched/sched_releasefiles.c b/nuttx/sched/sched_releasefiles.c index 160b0fb42..3990cd3c6 100644 --- a/nuttx/sched/sched_releasefiles.c +++ b/nuttx/sched/sched_releasefiles.c @@ -1,8 +1,8 @@ /**************************************************************************** * sched/sched_releasefiles.c * - * Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * Copyright (C) 2007, 2008, 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -58,7 +58,10 @@ * Function: sched_releasefiles * * Description: - * Release file resources attached to a TCB. + * Release file resources attached to a TCB. This file may be called + * multiple times as a task exists. It will be called as early as possible + * to support proper closing of complex drivers that may need to wait + * on external events. * * Parameters: * tcb - tcb of the new task. @@ -75,25 +78,33 @@ int sched_releasefiles(_TCB *tcb) if (tcb) { #if CONFIG_NFILE_DESCRIPTORS > 0 - /* Free the file descriptor list */ + /* Free the file descriptor list */ - files_releaselist(tcb->filelist); - tcb->filelist = NULL; + if (tcb->filelist) + { + files_releaselist(tcb->filelist); + tcb->filelist = NULL; + } #if CONFIG_NFILE_STREAMS > 0 - /* Free the stream list */ + /* Free the stream list */ - lib_releaselist(tcb->streams); - tcb->streams = NULL; + if (tcb->streams) + { + lib_releaselist(tcb->streams); + tcb->streams = NULL; + } #endif /* CONFIG_NFILE_STREAMS */ #endif /* CONFIG_NFILE_DESCRIPTORS */ #if CONFIG_NSOCKET_DESCRIPTORS > 0 - /* Free the file descriptor list */ - - net_releaselist(tcb->sockets); - tcb->sockets = NULL; + /* Free the file descriptor list */ + if (tcb->sockets) + { + net_releaselist(tcb->sockets); + tcb->sockets = NULL; + } #endif /* CONFIG_NSOCKET_DESCRIPTORS */ } return OK; |