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Don't assume free(NULL) is OK. Yes, I know ANSI C says it is.

This commit is contained in:
Tom Lane 2001-06-13 19:52:33 +00:00
parent c74dc1281f
commit df3f152ed7
1 changed files with 14 additions and 6 deletions
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20
src/backend/utils/init/miscinit.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.69 2001/06/06 17:07:46 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.70 2001/06/13 19:52:33 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -36,7 +36,6 @@
#ifdef CYR_RECODE
unsigned char RecodeForwTable[128];
unsigned char RecodeBackTable[128];
#endif
ProcessingMode Mode = InitProcessing;
@ -82,7 +81,11 @@ IgnoreSystemIndexes(bool mode)
void
SetDatabasePath(const char *path)
{
free(DatabasePath);
if (DatabasePath)
{
free(DatabasePath);
DatabasePath = NULL;
}
/* use strdup since this is done before memory contexts are set up */
if (path)
{
@ -94,7 +97,12 @@ SetDatabasePath(const char *path)
void
SetDatabaseName(const char *name)
{
free(DatabaseName);
if (DatabaseName)
{
free(DatabaseName);
DatabaseName = NULL;
}
/* use strdup since this is done before memory contexts are set up */
if (name)
{
DatabaseName = strdup(name);
@ -112,8 +120,6 @@ SetDataDir(const char *dir)
char *new;
AssertArg(dir);
if (DataDir)
free(DataDir);
if (dir[0] != '/')
{
@ -155,6 +161,8 @@ SetDataDir(const char *dir)
elog(FATAL, "out of memory");
}
if (DataDir)
free(DataDir);
DataDir = new;
}