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-rw-r--r--bin/ps/keyword.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/bin/ps/keyword.c b/bin/ps/keyword.c
index 6a6b277..af33593 100644
--- a/bin/ps/keyword.c
+++ b/bin/ps/keyword.c
@@ -219,7 +219,7 @@ parsefmt(p)
while ((cp = strsep(&p, FMTSEP)) != NULL && *cp == '\0')
/* void */;
- if (!(v = findvar(cp)))
+ if (cp == NULL || !(v = findvar(cp)))
continue;
if ((vent = malloc(sizeof(struct varent))) == NULL)
err(1, NULL);
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