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authorSuzuki K Poulose <suzuki.poulose@arm.com>2018-07-11 22:40:26 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-15 14:52:58 +0300
commit00ea1970298677e31ed8f962bda663cfc4848481 (patch)
tree599eeced66515b90b31e8bd66dd8bc3794c42586 /drivers/hwtracing
parenta748ddd1132c79888390934216ef428e0b2f0ea8 (diff)
downloadlinux-00ea1970298677e31ed8f962bda663cfc4848481.tar.xz
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>
Diffstat (limited to 'drivers/hwtracing')
-rw-r--r--drivers/hwtracing/coresight/coresight-tmc-etr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index 3556d9a849e9..8af451230121 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -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;