nanohub: stm32: fix callback error code passed from dmaIsrTeif
Error codes should be negative, keeping this consistent with the rest of the firmware. Change-Id: I8aaa04d00a2e77c06eee9ff764cd2348192bcc6f
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Error codes should be negative, keeping this consistent with the rest of the firmware. Change-Id: I8aaa04d00a2e77c06eee9ff764cd2348192bcc6f
mentioned in commit a2350a2e
mentioned in commit 09641437
mentioned in commit 05dcb4b0