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udev-test: add message to show why test-udev failed

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Before:

    Assertion 'mknod(devname, mode, devnum) == 0' failed at ../src/test/test-udev.c:116, function run(). Aborting.
    Assertion 'unlink(devname) == 0' failed at ../src/test/test-udev.c:118, function run(). Aborting.

After:

    mknod() failed for '/dev/sda': Operation not permitted
    unlink('/dev/sda') failed: No such file or directory
This commit is contained in:
Alexey Bogdanenko
2018-12-11 16:55:34 +03:00
parent ba958bb18b
commit a680beb2fe
1 changed files with 4 additions and 2 deletions
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src/test/test-udev.c
+4 -2
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@@ -113,9 +113,11 @@ static int run(int argc, char *argv[]) {
(void) mkdir_parents_label(devname, 0755);
(void) sd_device_get_devnum(dev, &devnum);
assert_se(mknod(devname, mode, devnum) == 0);
if (mknod(devname, mode, devnum) < 0)
return log_error_errno(errno, "mknod() failed for '%s': %m", devname);
} else {
assert_se(unlink(devname) == 0);
if (unlink(devname) < 0)
return log_error_errno(errno, "unlink('%s') failed: %m", devname);
(void) rmdir_parents(devname, "/");
}
}