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Add empty pointer check in error cleanup 

If realloc fails, the curargv will be NULL.

Closes #253
This commit is contained in:
NanXiao 2014-07-14 16:34:49 +08:00 committed by Matt Stancliff
parent d1e820d8ee
commit e30c96ebde
1 changed files with 6 additions and 5 deletions
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11
hiredis.c
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@ -895,12 +895,13 @@ int redisvFormatCommand(char **target, const char *format, va_list ap) {
return totlen;
err:
while(argc--)
sdsfree(curargv[argc]);
free(curargv);
if (curargv) {
while(argc--)
sdsfree(curargv[argc]);
free(curargv);
}
if (curarg != NULL)
sdsfree(curarg);
sdsfree(curarg);
/* No need to check cmd since it is the last statement that can fail,
* but do it anyway to be as defensive as possible. */