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intel_th: msu: Fix the unexpected state warning

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The unexpected state warning should only warn on illegal state
transitions. Fix that.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fixes: 615c164da0 ("intel_th: msu: Introduce buffer interface")
Cc: stable@vger.kernel.org # v5.4+
Link: https://lore.kernel.org/r/20200317062215.15598-5-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Shishkin 2020-03-17 08:22:13 +02:00 committed by Greg Kroah-Hartman
parent 283f87c0d5
commit 885f123554
1 changed files with 4 additions and 3 deletions
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7
drivers/hwtracing/intel_th/msu.c
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@ -718,9 +718,6 @@ static int msc_win_set_lockout(struct msc_window *win,
if (old != expect) {
ret = -EINVAL;
dev_warn_ratelimited(msc_dev(win->msc),
"expected lockout state %d, got %d\n",
expect, old);
goto unlock;
}
@ -741,6 +738,10 @@ unlock:
/* from intel_th_msc_window_unlock(), don't warn if not locked */
if (expect == WIN_LOCKED && old == new)
return 0;
dev_warn_ratelimited(msc_dev(win->msc),
"expected lockout state %d, got %d\n",
expect, old);
}
return ret;