[PATCH] ndctl: Fix the NDCTL_TIMEOUT environment variable parsing

[Shivaprasad G Bhat]

The strtoul(x, y, size) returns empty string on y when the x is "only"
number with no other suffix strings. The code is checking if !null
instead of comparing with empty string.

Signed-off-by: Shivaprasad G Bhat <sb...@linux.ibm.com>
---
 ndctl/lib/libndctl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ndctl/lib/libndctl.c b/ndctl/lib/libndctl.c
index ad54f06..b0287e8 100644
--- a/ndctl/lib/libndctl.c
+++ b/ndctl/lib/libndctl.c
@@ -334,7 +334,7 @@ NDCTL_EXPORT int ndctl_new(struct ndctl_ctx **ctx)
                char *end;
 
                tmo = strtoul(env, &end, 0);
-               if (tmo < ULONG_MAX && !end)
+               if (tmo < ULONG_MAX && strcmp(end, "") == 0)
                        c->timeout = tmo;
                dbg(c, "timeout = %ld\n", tmo);
        }