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selftests/coredump: Remove the read() that fails the test

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Resolve a conflict between
  commit 6a68d28066 ("selftests/coredump: Fix "socket_detect_userspace_client" test failure")
and
  commit 994dc26302 ("selftests/coredump: fix build")

The first commit adds a read() to wait for write() from another thread to
finish. But the second commit removes the write().

Now that the two commits are in the same tree, the read() now gets EOF and
the test fails.

Remove this read() so that the test passes.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/20250811074957.4079616-1-namcao@linutronix.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Nam Cao 2025-08-11 09:49:57 +02:00 committed by Christian Brauner
parent 542ede096e
commit 2319f9d0aa
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1 changed files with 0 additions and 3 deletions
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3
tools/testing/selftests/coredump/stackdump_test.c
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@ -446,9 +446,6 @@ TEST_F(coredump, socket_detect_userspace_client)
if (info.coredump_mask & PIDFD_COREDUMPED)
goto out;
if (read(fd_coredump, &c, 1) < 1)
goto out;
exit_code = EXIT_SUCCESS;
out:
if (fd_peer_pidfd >= 0)