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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-07-23 09:00:31 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-07-23 09:00:31 +0200 |
| commit | 08135c85d8e868f7eaf9cebeb356fd1b2816995f (patch) | |
| tree | 6255927c9bdcf7bf3f6c2f7ad0644c8b302e35c3 /cpukit | |
| parent | doc: Add SMP section to CPU Arch Supplement (diff) | |
| download | rtems-08135c85d8e868f7eaf9cebeb356fd1b2816995f.tar.bz2 | |
i2c: Fix return status of i2c dev read/write
Diffstat (limited to 'cpukit')
| -rw-r--r-- | cpukit/dev/i2c/i2c-dev.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/cpukit/dev/i2c/i2c-dev.c b/cpukit/dev/i2c/i2c-dev.c index 6710632e87..b00a9bdf21 100644 --- a/cpukit/dev/i2c/i2c-dev.c +++ b/cpukit/dev/i2c/i2c-dev.c @@ -43,11 +43,13 @@ static ssize_t i2c_dev_read( ssize_t n; n = (*dev->read)(dev, buffer, count, iop->offset); - if (n > 0) { + if (n >= 0) { iop->offset += n; - } - return n; + return n; + } else { + rtems_set_errno_and_return_minus_one(-n); + } } static ssize_t i2c_dev_write( @@ -60,11 +62,13 @@ static ssize_t i2c_dev_write( ssize_t n; n = (*dev->write)(dev, buffer, count, iop->offset); - if (n > 0) { + if (n >= 0) { iop->offset += n; - } - return n; + return n; + } else { + rtems_set_errno_and_return_minus_one(-n); + } } static int i2c_dev_ioctl( |