[rtems commit] Store task_id of the current thread for the ISR before waiting for the transient event

[Gedare Bloom]

Module:    rtems
Branch:    master
Commit:    687463d7f3b0abb1d98e6e630fb6d47541594bd4
Changeset: http://git.rtems.org/rtems/commit/?id=687463d7f3b0abb1d98e6e630fb6d47541594bd4

Author:    Jan Sommer <soja-lists at aries.uberspace.de>
Date:      Thu Dec  3 21:56:31 2015 +0100

Store task_id of the current thread for the ISR before waiting for the transient event

The ISR will send a transient event to the task specified in bus->taskid.
Make sure that the correct task_id is written to this field before waiting
for the transient event to arrive.

Fixes #2483

---

 c/src/lib/libbsp/arm/raspberrypi/i2c/i2c.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/c/src/lib/libbsp/arm/raspberrypi/i2c/i2c.c b/c/src/lib/libbsp/arm/raspberrypi/i2c/i2c.c
index 14a2467..6d9a2cd 100644
--- a/c/src/lib/libbsp/arm/raspberrypi/i2c/i2c.c
+++ b/c/src/lib/libbsp/arm/raspberrypi/i2c/i2c.c
@@ -92,6 +92,7 @@ static int rpi_i2c_bus_transfer(rpi_i2c_bus *bus)
 
       /* Sleep until the TX FIFO has free space for a new write. */
       if (
+          bus->task_id = rtems_task_self();
           rtems_event_transient_receive(RTEMS_WAIT, bus->base.timeout) !=
           RTEMS_SUCCESSFUL
       ) {