[NET]: Fix kfifo_alloc() error check.

The return value of kfifo_alloc() should be checked by IS_ERR().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/dccp/probe.c b/net/dccp/probe.c
index 146496f..fded149 100644 (file)
--- a/net/dccp/probe.c
+++ b/net/dccp/probe.c
@@ -160,6 +160,8 @@ static __init int dccpprobe_init(void)
        init_waitqueue_head(&dccpw.wait);
        spin_lock_init(&dccpw.lock);
        dccpw.fifo = kfifo_alloc(bufsize, GFP_KERNEL, &dccpw.lock);
+       if (IS_ERR(dccpw.fifo))
+               return PTR_ERR(dccpw.fifo);
 
        if (!proc_net_fops_create(procname, S_IRUSR, &dccpprobe_fops))
                goto err0;

diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
index 4be336f..f230eee 100644 (file)
--- a/net/ipv4/tcp_probe.c
+++ b/net/ipv4/tcp_probe.c
@@ -156,6 +156,8 @@ static __init int tcpprobe_init(void)
        init_waitqueue_head(&tcpw.wait);
        spin_lock_init(&tcpw.lock);
        tcpw.fifo = kfifo_alloc(bufsize, GFP_KERNEL, &tcpw.lock);
+       if (IS_ERR(tcpw.fifo))
+               return PTR_ERR(tcpw.fifo);
 
        if (!proc_net_fops_create(procname, S_IRUSR, &tcpprobe_fops))
                goto err0;