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intel_th: msu: Fix offset for wrapped block 

Fix offset for the second pass on the wrapped block when iterating over
memory in multi-block mode, otherwise wrong part of the block will get
copied.

Signed-off-by: Laurent FERT <laurent.fert@intel.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Laurent FERT 2016-02-15 19:11:56 +02:00 committed by Greg Kroah-Hartman
parent 4d02ceff32
commit e4eca2a1c7
1 changed files with 1 additions and 1 deletions
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2
drivers/hwtracing/intel_th/msu.c
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@ -408,7 +408,7 @@ msc_buffer_iterate(struct msc_iter *iter, size_t size, void *data,
* Second time (wrap_count==1), it's just like any other block,
* containing data in the range of [MSC_BDESC..data_bytes].
*/
if (iter->block == iter->start_block && iter->wrap_count) {
if (iter->block == iter->start_block && iter->wrap_count == 2) {
tocopy = DATA_IN_PAGE - data_bytes;
src += data_bytes;
}