Commit 00ea1970 authored Jul 11, 2018 by Suzuki K Poulose Committed by Greg Kroah-Hartman Jul 15, 2018

coresight: Fix check in coresight_tmc_etr_buf_insert_barrier_packet



We request for "CORESIGHT_BARRIER_PKT_SIZE" length and we should
be happy when we get that size.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent a748ddd1

drivers/hwtracing/coresight/coresight-tmc-etr.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -807,7 +807,7 @@ tmc_etr_buf_insert_barrier_packet(struct etr_buf *etr_buf, u64 offset)

		len = tmc_etr_buf_get_data(etr_buf, offset,
		CORESIGHT_BARRIER_PKT_SIZE, &bufp);
		if (WARN_ON(len <= CORESIGHT_BARRIER_PKT_SIZE))
		if (WARN_ON(len < CORESIGHT_BARRIER_PKT_SIZE))
		return -EINVAL;
		coresight_insert_barrier_packet(bufp);
		return offset + CORESIGHT_BARRIER_PKT_SIZE;

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