svn commit: r356272 - stable/12/usr.sbin/powerd

[Mark Johnston]

Author: markj
Date: Thu Jan  2 14:39:37 2020
New Revision: 356272
URL: https://svnweb.freebsd.org/changeset/base/356272

Log:
  MFC r356184:
  powerd(8): Fix a memory leak when we fail to read frequency levels.
  
  PR:	242967

Modified:
  stable/12/usr.sbin/powerd/powerd.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/usr.sbin/powerd/powerd.c
==============================================================================
--- stable/12/usr.sbin/powerd/powerd.c	Thu Jan  2 14:04:16 2020	(r356271)
+++ stable/12/usr.sbin/powerd/powerd.c	Thu Jan  2 14:39:37 2020	(r356272)
@@ -196,8 +196,10 @@ read_freqs(int *numfreqs, int **freqs, int **power, in
 		return (-1);
 	if ((freqstr = malloc(len)) == NULL)
 		return (-1);
-	if (sysctl(levels_mib, 4, freqstr, &len, NULL, 0))
+	if (sysctl(levels_mib, 4, freqstr, &len, NULL, 0)) {
+		free(freqstr);
 		return (-1);
+	}
 
 	*numfreqs = 1;
 	for (p = freqstr; *p != '\0'; p++)