From 05ca6e644dc9b733379009137ba4cc7afce2256d Mon Sep 17 00:00:00 2001 From: Murali Karicheri Date: Fri, 5 Apr 2019 13:31:28 -0400 Subject: net: hsr: fix NULL checks in the code This patch replaces all instance of NULL checks such as if (foo == NULL) with if (!foo) Also if (foo != NULL) with if (foo) This is seen when ran checkpatch.pl -f on files under net/hsr and suggestion is to replace as above. Signed-off-by: Murali Karicheri Signed-off-by: David S. Miller --- net/hsr/hsr_device.c | 2 +- net/hsr/hsr_forward.c | 12 ++++++------ net/hsr/hsr_framereg.c | 2 +- net/hsr/hsr_main.c | 4 ++-- net/hsr/hsr_slave.c | 6 +++--- 5 files changed, 13 insertions(+), 13 deletions(-) (limited to 'net/hsr') diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index 567c890f08a5..245fc531d39f 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -258,7 +258,7 @@ static void send_hsr_supervision_frame(struct hsr_port *master, sizeof(struct hsr_sup_tag) + sizeof(struct hsr_sup_payload) + hlen + tlen); - if (skb == NULL) + if (!skb) return; skb_reserve(skb, hlen); diff --git a/net/hsr/hsr_forward.c b/net/hsr/hsr_forward.c index fdc191015208..68ca775d3be8 100644 --- a/net/hsr/hsr_forward.c +++ b/net/hsr/hsr_forward.c @@ -97,7 +97,7 @@ static struct sk_buff *create_stripped_skb(struct sk_buff *skb_in, skb_pull(skb_in, HSR_HLEN); skb = __pskb_copy(skb_in, skb_headroom(skb_in) - HSR_HLEN, GFP_ATOMIC); skb_push(skb_in, HSR_HLEN); - if (skb == NULL) + if (!skb) return NULL; skb_reset_mac_header(skb); @@ -160,7 +160,7 @@ static struct sk_buff *create_tagged_skb(struct sk_buff *skb_o, /* Create the new skb with enough headroom to fit the HSR tag */ skb = __pskb_copy(skb_o, skb_headroom(skb_o) + HSR_HLEN, GFP_ATOMIC); - if (skb == NULL) + if (!skb) return NULL; skb_reset_mac_header(skb); @@ -277,7 +277,7 @@ static void hsr_forward_do(struct hsr_frame_info *frame) skb = frame_get_tagged_skb(frame, port); else skb = frame_get_stripped_skb(frame, port); - if (skb == NULL) { + if (!skb) { /* FIXME: Record the dropped frame? */ continue; } @@ -317,7 +317,7 @@ static int hsr_fill_frame_info(struct hsr_frame_info *frame, frame->is_supervision = is_supervision_frame(port->hsr, skb); frame->node_src = hsr_get_node(port, skb, frame->is_supervision); - if (frame->node_src == NULL) + if (!frame->node_src) return -1; /* Unknown node and !is_supervision, or no mem */ ethhdr = (struct ethhdr *) skb_mac_header(skb); @@ -364,9 +364,9 @@ void hsr_forward_skb(struct sk_buff *skb, struct hsr_port *port) hsr_register_frame_in(frame.node_src, port, frame.sequence_nr); hsr_forward_do(&frame); - if (frame.skb_hsr != NULL) + if (frame.skb_hsr) kfree_skb(frame.skb_hsr); - if (frame.skb_std != NULL) + if (frame.skb_std) kfree_skb(frame.skb_std); return; diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c index 78fca38ffa9f..c1b0e62af0f1 100644 --- a/net/hsr/hsr_framereg.c +++ b/net/hsr/hsr_framereg.c @@ -405,7 +405,7 @@ void hsr_prune_nodes(struct timer_list *t) msecs_to_jiffies(1.5*MAX_SLAVE_DIFF))) { rcu_read_lock(); port = get_late_port(hsr, node); - if (port != NULL) + if (port) hsr_nl_ringerror(hsr, node->MacAddressA, port); rcu_read_unlock(); } diff --git a/net/hsr/hsr_main.c b/net/hsr/hsr_main.c index 0d4ab8fc0aa1..84cacf8c1b0a 100644 --- a/net/hsr/hsr_main.c +++ b/net/hsr/hsr_main.c @@ -30,12 +30,12 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event, dev = netdev_notifier_info_to_dev(ptr); port = hsr_port_get_rtnl(dev); - if (port == NULL) { + if (!port) { if (!is_hsr_master(dev)) return NOTIFY_DONE; /* Not an HSR device */ hsr = netdev_priv(dev); port = hsr_port_get_hsr(hsr, HSR_PT_MASTER); - if (port == NULL) { + if (!port) { /* Resend of notification concerning removed device? */ return NOTIFY_DONE; } diff --git a/net/hsr/hsr_slave.c b/net/hsr/hsr_slave.c index d506c694ee25..07cbc2ead64d 100644 --- a/net/hsr/hsr_slave.c +++ b/net/hsr/hsr_slave.c @@ -140,11 +140,11 @@ int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev, } port = hsr_port_get_hsr(hsr, type); - if (port != NULL) + if (port) return -EBUSY; /* This port already exists */ port = kzalloc(sizeof(*port), GFP_KERNEL); - if (port == NULL) + if (!port) return -ENOMEM; if (type != HSR_PT_MASTER) { @@ -181,7 +181,7 @@ void hsr_del_port(struct hsr_port *port) list_del_rcu(&port->port_list); if (port != master) { - if (master != NULL) { + if (master) { netdev_update_features(master->dev); dev_set_mtu(master->dev, hsr_get_max_mtu(hsr)); } -- cgit v1.2.3-59-g8ed1b