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intel_th: Fix user-visible error codes

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commit ce666be89a8a09c5924ff08fc32e119f974bdab6 upstream.

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+
Link: https://lore.kernel.org/r/20200317062215.15598-6-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Shishkin 2020-03-17 08:22:14 +02:00 committed by prashantpaddune
parent 0027d26382
commit d44e8dd999
1 changed files with 3 additions and 3 deletions
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6
drivers/hwtracing/intel_th/msu.c
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@ -483,7 +483,7 @@ static int msc_configure(struct msc *msc)
u32 reg;
if (msc->mode > MSC_MODE_MULTI)
return -ENOTSUPP;
return -EINVAL;
if (msc->mode == MSC_MODE_MULTI)
msc_buffer_clear_hw_header(msc);
@ -935,7 +935,7 @@ 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) {
@ -1164,7 +1164,7 @@ 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: