Check the chroot() return value, fixes unused return value warnings/errors:
procd-2017-06-22-e5e99c46/upgraded/upgraded.c:78:8: error: ignoring return
value of 'chroot', declared with attribute warn_unused_result
[-Werror=unused-result] chroot(".");
Fixes: 056d8ddda8d5 ("upgraded: link dynamically, chroot during exec")
Signed-off-by: Florian Fainelli <f.faine...@gmail.com>
---
upgraded/upgraded.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/upgraded/upgraded.c b/upgraded/upgraded.c
index 09c623cf804b..220da7903f92 100644
--- a/upgraded/upgraded.c
+++ b/upgraded/upgraded.c
@@ -78,7 +78,10 @@ int main(int argc, char **argv)
return 1;
}
- chroot(".");
+ if (chroot(".") < 0) {
+ fprintf(stderr, "failed to chroot: %s\n", strerror(errno));
+ return 1;
+ }
if (fchdir(fd) == -1) {
fprintf(stderr, "failed to chdir to prefix directory: %s\n",
strerror(errno));
--
2.11.0
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