Author: delphij
Date: Tue Jan 24 07:48:36 2017
New Revision: 312683
URL: https://svnweb.freebsd.org/changeset/base/312683
Log:
Don't reference NULL pointer.
MFC after: 2 weeks
Modified:
head/usr.bin/mail/popen.c
Modified: head/usr.bin/mail/popen.c
==============================================================================
--- head/usr.bin/mail/popen.c Tue Jan 24 05:06:52 2017 (r312682)
+++ head/usr.bin/mail/popen.c Tue Jan 24 07:48:36 2017 (r312683)
@@ -303,7 +303,7 @@ findchild(pid_t pid, int dont_alloc)
cpp = &(*cpp)->link)
;
if (*cpp == NULL) {
- if (dont_alloc)
+ if (dont_alloc)
return(NULL);
if (child_freelist) {
*cpp = child_freelist;
@@ -344,6 +344,8 @@ sigchild(int signo __unused)
save_errno = errno;
while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
cp = findchild(pid, 1);
+ if (cp == NULL)
+ continue;
if (cp->free)
delchild(cp);
else {
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