sysctl: on EIO ("sysctl net.ipv6.conf.all.stable_secret") set nonzero exitcode

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/procps/sysctl.c b/procps/sysctl.c
index 2ef19c1be..94a307901 100644
--- a/procps/sysctl.c
+++ b/procps/sysctl.c
@@ -177,6 +177,7 @@ static int sysctl_act_on_setting(char *setting)
                 close(fd);
                 if (value == NULL) {
                         bb_perror_msg("error reading key '%s'", outname);
+                        retval = EXIT_FAILURE;
                         goto end;
                 }