tree af08ef8645cc04e162a8779217ba2a2402f783f7
parent 0d623e201023c944571126a50df2fbafc8465150
author Tri Pho <tripho@google.com> 1628710189 -0700
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1628725544 +0000

pw_rpc: Fix segfault for BaseClientCall assignment

channel_ is default nullptr and therefore RegisterCall can crash when
searching through existing calls on reassignment with multiple
outstanding calls on a single client.

Tested: Unit test segfaults before, passes now.

No-Docs-Update-Reason: Bug fix

Change-Id: I2f44f42630f83a4818fa4c5435bb60b8fa4f342c
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/56789
Commit-Queue: Tri Pho <tripho@google.com>
Reviewed-by: Alexei Frolov <frolv@google.com>