arm_tpiu_swo: fix two dead assignments
commit57262ebeae7be08ba260c36bb11630e03e594856
authorAntonio Borneo <borneo.antonio@gmail.com>
Wed, 22 Sep 2021 16:51:26 +0000 (22 18:51 +0200)
committerAntonio Borneo <borneo.antonio@gmail.com>
Mon, 25 Oct 2021 16:09:02 +0000 (25 16:09 +0000)
tree2578895da7e4228de3c92dfaba600347e41625f5
parentb3f052ba9d9582fe203ff8baa73fef66c02196ac
arm_tpiu_swo: fix two dead assignments

Clang scan-build complains for two dead assignments:
Value stored to 'retval' is never read

Since the timer callback should not return error, print an error
message if the data cannot be send out. Add a FIXME comment
because in current code there is no string/name to report which
connection has failed.

In command tpiu enable check the returned value and propagate the
error.

Change-Id: I9a89e4c4f7b677e8222b2df09a31b2478ac9ca4f
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6588
Tested-by: jenkins
src/target/arm_tpiu_swo.c