ACPI: ec: Acquire Global Lock under EC mutex.
Signed-off-by: Len Brown <len.brown@intel.com>
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@ -286,12 +286,12 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
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if (rdata)
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memset(rdata, 0, rdata_len);
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mutex_lock(&ec->lock);
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if (ec->global_lock) {
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status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
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if (ACPI_FAILURE(status))
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return -ENODEV;
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}
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mutex_lock(&ec->lock);
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/* Make sure GPE is enabled before doing transaction */
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acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
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@ -307,10 +307,10 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
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rdata, rdata_len);
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end:
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mutex_unlock(&ec->lock);
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if (ec->global_lock)
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acpi_release_global_lock(glk);
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mutex_unlock(&ec->lock);
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return status;
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}
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