From: John Darrington <john@darrington.wattle.id.au>
Date: Sun, 14 Oct 2018 19:06:56 +0000 (+0200)
Subject: Fix possible null pointer dereference in linreg_predict.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e2f53f8dd97ca2177a60f7c7e7d785d8e3e7faaa;p=pspp

Fix possible null pointer dereference in linreg_predict.

Found by cppcheck.
---

diff --git a/src/math/linreg.c b/src/math/linreg.c
index d1e0dae980..f88a18a5b8 100644
--- a/src/math/linreg.c
+++ b/src/math/linreg.c
@@ -275,11 +275,11 @@ linreg_predict (const struct linreg *c, const double *vals, size_t n_vals)
   size_t j;
   double result;
 
-  assert (n_vals == c->n_coeffs);
   if (vals == NULL || c == NULL)
     {
       return GSL_NAN;
     }
+  assert (n_vals == c->n_coeffs);
   if (c->coeff == NULL)
     {
       /* The stupid model: just guess the mean. */