diff options
| author | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2012-08-14 14:42:50 +0000 |
|---|---|---|
| committer | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2012-08-14 14:42:50 +0000 |
| commit | aa09e054326770824994f0ee7bb07d3155484337 (patch) | |
| tree | b7f43cc028560883de0ec4c9bf58b345dbadb02e /nuttx/lib/stdio/lib_rawoutstream.c | |
| parent | a72ff3b651c8b4a13c4791fb1829c94ed0ce88ed (diff) | |
| download | px4-firmware-aa09e054326770824994f0ee7bb07d3155484337.tar.gz px4-firmware-aa09e054326770824994f0ee7bb07d3155484337.tar.bz2 px4-firmware-aa09e054326770824994f0ee7bb07d3155484337.zip | |
Revise recent changes to serial driver error handling: Errors other than EINTR may be returned when the driver is used very early in initialization. STM32 SPI driver will now survive repeated initializations
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@5026 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'nuttx/lib/stdio/lib_rawoutstream.c')
| -rw-r--r-- | nuttx/lib/stdio/lib_rawoutstream.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/nuttx/lib/stdio/lib_rawoutstream.c b/nuttx/lib/stdio/lib_rawoutstream.c index 6adf9b53d..ed813f87a 100644 --- a/nuttx/lib/stdio/lib_rawoutstream.c +++ b/nuttx/lib/stdio/lib_rawoutstream.c @@ -59,9 +59,11 @@ static void rawoutstream_putc(FAR struct lib_outstream_s *this, int ch) DEBUGASSERT(this && rthis->fd >= 0); - /* Loop until the character is successfully transferred */ + /* Loop until the character is successfully transferred or until an + * irrecoverable error occurs. + */ - for (;;) + do { nwritten = write(rthis->fd, &buffer, 1); if (nwritten == 1) @@ -75,8 +77,9 @@ static void rawoutstream_putc(FAR struct lib_outstream_s *this, int ch) * from write(). */ - DEBUGASSERT(nwritten < 0 && get_errno() == EINTR); + DEBUGASSERT(nwritten < 0); } + while (get_errno() == EINTR); } /**************************************************************************** |