diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2016-03-23 15:37:02 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-28 07:30:36 -0700 |
| commit | 592ef9fb8d7e5deb359b02530c5bb0d0b717cfef (patch) | |
| tree | ee872cc2d91a764af6dc2c44a1b604d3053e6fdc /drivers/staging/comedi/drivers/ni_tio.c | |
| parent | 475ea1ed14cce2608ed0f12474be2a3d75880eaf (diff) | |
staging: comedi: ni_tio: fix ni_tio_insn_config()
The (*insn_config) functions are supposed to return an errno or the number
of 'data' values used for the instruction (insn->n). Currently this function
returns an errno or 0. Fix the function to work like the core expects.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_tio.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_tio.c | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 51dd368f788d..10d4585ab25c 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -1295,15 +1295,18 @@ int ni_tio_insn_config(struct comedi_device *dev, struct ni_gpct *counter = s->private; unsigned int cidx = counter->counter_index; unsigned int status; + int ret = 0; switch (data[0]) { case INSN_CONFIG_SET_COUNTER_MODE: - return ni_tio_set_counter_mode(counter, data[1]); + ret = ni_tio_set_counter_mode(counter, data[1]); + break; case INSN_CONFIG_ARM: - return ni_tio_arm(counter, true, data[1]); + ret = ni_tio_arm(counter, true, data[1]); + break; case INSN_CONFIG_DISARM: - ni_tio_arm(counter, false, 0); - return 0; + ret = ni_tio_arm(counter, false, 0); + break; case INSN_CONFIG_GET_COUNTER_STATUS: data[1] = 0; status = ni_tio_read(counter, NITIO_SHARED_STATUS_REG(cidx)); @@ -1313,25 +1316,29 @@ int ni_tio_insn_config(struct comedi_device *dev, data[1] |= COMEDI_COUNTER_COUNTING; } data[2] = COMEDI_COUNTER_ARMED | COMEDI_COUNTER_COUNTING; - return 0; + break; case INSN_CONFIG_SET_CLOCK_SRC: - return ni_tio_set_clock_src(counter, data[1], data[2]); + ret = ni_tio_set_clock_src(counter, data[1], data[2]); + break; case INSN_CONFIG_GET_CLOCK_SRC: ni_tio_get_clock_src(counter, &data[1], &data[2]); - return 0; + break; case INSN_CONFIG_SET_GATE_SRC: - return ni_tio_set_gate_src(counter, data[1], data[2]); + ret = ni_tio_set_gate_src(counter, data[1], data[2]); + break; case INSN_CONFIG_GET_GATE_SRC: - return ni_tio_get_gate_src(counter, data[1], &data[2]); + ret = ni_tio_get_gate_src(counter, data[1], &data[2]); + break; case INSN_CONFIG_SET_OTHER_SRC: - return ni_tio_set_other_src(counter, data[1], data[2]); + ret = ni_tio_set_other_src(counter, data[1], data[2]); + break; case INSN_CONFIG_RESET: ni_tio_reset_count_and_disarm(counter); - return 0; - default: break; + default: + return -EINVAL; } - return -EINVAL; + return ret ? ret : insn->n; } EXPORT_SYMBOL_GPL(ni_tio_insn_config); |