There are a few places in the driver that end up returning ENOTSUPP to the user, replace those with EINVAL.

Signed-off-by: Alexander Shishkin alexander.shishkin@linux.intel.com Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Fixes: ba82664c134ef ("intel_th: Add Memory Storage Unit driver") Cc: stable@vger.kernel.org # v4.4+ --- drivers/hwtracing/intel_th/msu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c index 7ac7dd4d3b1c..f08e9e883710 100644 --- a/drivers/hwtracing/intel_th/msu.c +++ b/drivers/hwtracing/intel_th/msu.c @@ -765,7 +765,7 @@ static int msc_configure(struct msc *msc) lockdep_assert_held(&msc->buf_mutex);

if (msc->mode > MSC_MODE_MULTI) - return -ENOTSUPP; + return -EINVAL;

if (msc->mode == MSC_MODE_MULTI) { if (msc_win_set_lockout(msc->cur_win, WIN_READY, WIN_INUSE)) @@ -1299,7 +1299,7 @@ static int msc_buffer_alloc(struct msc *msc, unsigned long *nr_pages, } else if (msc->mode == MSC_MODE_MULTI) { ret = msc_buffer_multi_alloc(msc, nr_pages, nr_wins); } else { - ret = -ENOTSUPP; + ret = -EINVAL; }

if (!ret) { @@ -1535,7 +1535,7 @@ static ssize_t intel_th_msc_read(struct file *file, char __user *buf, if (ret >= 0) *ppos = iter->offset; } else { - ret = -ENOTSUPP; + ret = -EINVAL; }

put_count: