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AP_HAL_Linux: release mutex lock before calling write(c) 

It instantly tries to take it, but we're still holding it, leading to
instant failure.

This mirrors the same code in AP_HAL_ChibiOS.
This commit is contained in:
Peter Barker 2019-10-24 21:56:32 +11:00 committed by Andrew Tridgell
parent b7fba78087
commit 79638db36b
1 changed files with 1 additions and 1 deletions
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2
libraries/AP_HAL_Linux/UARTDriver.cpp
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@ -328,12 +328,12 @@ size_t UARTDriver::write(const uint8_t *buffer, size_t size)
/* /*
use the per-byte delay loop in write() above for blocking writes use the per-byte delay loop in write() above for blocking writes
*/ */
_write_mutex.give();
size_t ret = 0; size_t ret = 0;
while (size--) { while (size--) {
if (write(*buffer++) != 1) break; if (write(*buffer++) != 1) break;
ret++; ret++;
} }
_write_mutex.give();
return ret; return ret;
} }