Fixed potential segfault in ngx_http_keepalive_handler(). In case of error in the read event handling we close a connection by calling ngx_http_close_connection(), that also destroys connection pool. Thereafter, an attempt to free a buffer (added in r4892) that was allocated from the pool could cause SIGSEGV and is meaningless as well (the buffer already freed with the pool).

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


CFLAGS = -zq -bt=nt -bm -ot -op -oi -oe -s $(CPU_OPT)

md5.lib:
	cd $(MD5)
	wcl386 -c $(CFLAGS) -dL_ENDIAN md5_dgst.c
	wlib -n md5.lib md5_dgst.obj