[cairo] [PATCH] [perf] Don't dereference NULL upon malloc failure.

[Jim Meyering]

* cairo-perf-diff-files.c (getline): Return -1 also upon malloc failure.

Signed-off-by: Jim Meyering <meyering at redhat.com>
---
 perf/cairo-perf-diff-files.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/perf/cairo-perf-diff-files.c b/perf/cairo-perf-diff-files.c
index 5fdf72d..4aab477 100644
--- a/perf/cairo-perf-diff-files.c
+++ b/perf/cairo-perf-diff-files.c
@@ -267,7 +267,7 @@ getline (char **lineptr, size_t *n, FILE *stream)
         *lineptr = (char *) malloc (*n);
     }

-    if (!fgets (*lineptr, *n, stream))
+    if (*lineptr == NULL || !fgets (*lineptr, *n, stream))
         return -1;

     if (!feof (stream) && !strchr (*lineptr, '\n'))
--
1.5.4.rc2.39.g6989c5