tests: improve sigprocmask()-related error messages

When sigprocmask() fails for how=SIG_BLOCK|SIG_UNBLOCK, say explicitly
we were unable to block/unblock SIGCHLD.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>

diff --git a/tests/gpiod-test.c b/tests/gpiod-test.c
index f7073ebe9b47adc3b4aac4d89ee08d44f5fef37e..53cbc95aa8faa71039de07776e70b99ca2261185 100644 (file)
--- a/tests/gpiod-test.c
+++ b/tests/gpiod-test.c
@@ -499,7 +499,7 @@ void test_tool_run(char *tool, ...)
 
        status = sigprocmask(SIG_BLOCK, &sigmask, NULL);
        if (status)
-               die_perr("unable to mask signals");
+               die_perr("unable to block SIGCHLD");
 
        proc->sig_fd = signalfd(-1, &sigmask, 0);
        if (proc->sig_fd < 0)
@@ -592,7 +592,7 @@ void test_tool_wait(void)
 
        status = sigprocmask(SIG_UNBLOCK, &sigmask, NULL);
        if (status)
-               die_perr("unable to unblock signals");
+               die_perr("unable to unblock SIGCHLD");
 
        gpiotool_readall(proc->stdout_fd, &proc->stdout);
        gpiotool_readall(proc->stderr_fd, &proc->stderr);