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coresight: Fix check in coresight_tmc_etr_buf_insert_barrier_packet

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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>
This commit is contained in:
Suzuki K Poulose 2018-07-11 13:40:26 -06:00 committed by Greg Kroah-Hartman
parent a748ddd113
commit 00ea197029
1 changed files with 1 additions and 1 deletions
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drivers/hwtracing/coresight/coresight-tmc-etr.c
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@ -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;