[PATCH 2/8] Fix open() result check in check_tainted()

[Tommi Rantala]

---
 main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.c b/main.c
index 648e56d..0e58433 100644
--- a/main.c
+++ b/main.c
@@ -57,7 +57,7 @@ int check_tainted(void)
        char buffer[4];
 
        fd = open("/proc/sys/kernel/tainted", O_RDONLY);
-       if (!fd)
+       if (fd < 0)
                return -1;
        ret = read(fd, buffer, 3);
        close(fd);
-- 
1.8.1.4

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