drivers/net: replace BUG() with BUG_ON() if possible

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 files changed, 22 insertions, 42 deletions

diff --git a/drivers/net/atl1e/atl1e_main.c b/drivers/net/atl1e/atl1e_main.c
index fb57b750866b..adac06195c8f 100644
--- a/drivers/net/atl1e/atl1e_main.c
+++ b/drivers/net/atl1e/atl1e_main.c
@@ -1794,8 +1794,7 @@ static void atl1e_tx_map(struct atl1e_adapter *adapter,
                         memcpy(use_tpd, tpd, sizeof(struct atl1e_tpd_desc));
 
                         tx_buffer = atl1e_get_tx_buffer(adapter, use_tpd);
-                        if (tx_buffer->skb)
-                                BUG();
+                        BUG_ON(tx_buffer->skb);
 
                         tx_buffer->skb = NULL;
                         tx_buffer->length =
diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c
index 0ab22540bf59..13f0bdc32449 100644
--- a/drivers/net/atlx/atl1.c
+++ b/drivers/net/atlx/atl1.c
@@ -2207,8 +2207,7 @@ static void atl1_tx_map(struct atl1_adapter *adapter, struct sk_buff *skb,
         nr_frags = skb_shinfo(skb)->nr_frags;
         next_to_use = atomic_read(&tpd_ring->next_to_use);
         buffer_info = &tpd_ring->buffer_info[next_to_use];
-        if (unlikely(buffer_info->skb))
-                BUG();
+        BUG_ON(buffer_info->skb);
         /* put skb in last TPD */
         buffer_info->skb = NULL;
 
@@ -2274,8 +2273,8 @@ static void atl1_tx_map(struct atl1_adapter *adapter, struct sk_buff *skb,
                         ATL1_MAX_TX_BUF_LEN;
                 for (i = 0; i < nseg; i++) {
                         buffer_info = &tpd_ring->buffer_info[next_to_use];
-                        if (unlikely(buffer_info->skb))
-                                BUG();
+                        BUG_ON(buffer_info->skb);
+
                         buffer_info->skb = NULL;
                         buffer_info->length = (buf_len > ATL1_MAX_TX_BUF_LEN) ?
                                 ATL1_MAX_TX_BUF_LEN : buf_len;
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index 58f6fc055f6a..5e97a1a71d88 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -1149,8 +1149,8 @@ static inline void write_tx_desc(struct cmdQ_e *e, dma_addr_t mapping,
                                  unsigned int len, unsigned int gen,
                                  unsigned int eop)
 {
-        if (unlikely(len > SGE_TX_DESC_MAX_PLEN))
-                BUG();
+        BUG_ON(len > SGE_TX_DESC_MAX_PLEN);
+
         e->addr_lo = (u32)mapping;
         e->addr_hi = (u64)mapping >> 32;
         e->len_gen = V_CMD_LEN(len) | V_CMD_GEN1(gen);
diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c
index 28077cc1b949..61aaae444b40 100644
--- a/drivers/net/fs_enet/mii-fec.c
+++ b/drivers/net/fs_enet/mii-fec.c
@@ -54,8 +54,7 @@ static int fs_enet_fec_mii_read(struct mii_bus *bus , int phy_id, int location)
         fec_t __iomem *fecp = fec->fecp;
         int i, ret = -1;
 
-        if ((in_be32(&fecp->fec_r_cntrl) & FEC_RCNTRL_MII_MODE) == 0)
-                BUG();
+        BUG_ON((in_be32(&fecp->fec_r_cntrl) & FEC_RCNTRL_MII_MODE) == 0);
 
         /* Add PHY address to register command.  */
         out_be32(&fecp->fec_mii_data, (phy_id << 23) | mk_mii_read(location));
@@ -79,8 +78,7 @@ static int fs_enet_fec_mii_write(struct mii_bus *bus, int phy_id, int location,
         int i;
 
         /* this must never happen */
-        if ((in_be32(&fecp->fec_r_cntrl) & FEC_RCNTRL_MII_MODE) == 0)
-                BUG();
+        BUG_ON((in_be32(&fecp->fec_r_cntrl) & FEC_RCNTRL_MII_MODE) == 0);
 
         /* Add PHY address to register command.  */
         out_be32(&fecp->fec_mii_data, (phy_id << 23) | mk_mii_write(location, val));
diff --git a/drivers/net/ixgb/ixgb_osdep.h b/drivers/net/ixgb/ixgb_osdep.h
index d92e72bd627a..371a6be4d965 100644
--- a/drivers/net/ixgb/ixgb_osdep.h
+++ b/drivers/net/ixgb/ixgb_osdep.h
@@ -40,7 +40,7 @@
 #include <linux/sched.h>
 
 #undef ASSERT
-#define ASSERT(x)       if (!(x)) BUG()
+#define ASSERT(x)       BUG_ON(!(x))
 #define MSGOUT(S, A, B) printk(KERN_DEBUG S "\n", A, B)
 
 #ifdef DBG
diff --git a/drivers/net/pppol2tp.c b/drivers/net/pppol2tp.c
index 5b07dd8e5c04..5981debcde5e 100644
--- a/drivers/net/pppol2tp.c
+++ b/drivers/net/pppol2tp.c
@@ -1238,8 +1238,7 @@ static void pppol2tp_tunnel_closeall(struct pppol2tp_tunnel *tunnel)
         struct pppol2tp_session *session;
         struct sock *sk;
 
-        if (tunnel == NULL)
-                BUG();
+        BUG_ON(tunnel == NULL);
 
         PRINTK(tunnel->debug, PPPOL2TP_MSG_CONTROL, KERN_INFO,
                "%s: closing all sessions...\n", tunnel->name);
diff --git a/drivers/net/tulip/winbond-840.c b/drivers/net/tulip/winbond-840.c
index 264e61404f34..842b1a2c40d4 100644
--- a/drivers/net/tulip/winbond-840.c
+++ b/drivers/net/tulip/winbond-840.c
@@ -1601,8 +1601,7 @@ static int w840_suspend (struct pci_dev *pdev, pm_message_t state)
 
                 /* no more hardware accesses behind this line. */
 
-                BUG_ON(np->csr6);
-                if (ioread32(ioaddr + IntrEnable)) BUG();
+                BUG_ON(np->csr6 || ioread32(ioaddr + IntrEnable));
 
                 /* pci_power_off(pdev, -1); */
 
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 9c82a39497e5..071855871524 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -621,12 +621,9 @@ static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd,
         virtio_net_ctrl_ack status = ~0;
         unsigned int tmp;
 
-        if (!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ)) {
-                BUG();  /* Caller should know better */
-                return false;
-        }
-
-        BUG_ON(out + in > VIRTNET_SEND_COMMAND_SG_MAX);
+        /* Caller should know better */
+        BUG_ON(!virtio_has_feature(vi->vdev, VIRTIO_NET_F_CTRL_VQ) ||
+                (out + in > VIRTNET_SEND_COMMAND_SG_MAX));
 
         out++; /* Add header */
         in++; /* Add return status */
@@ -640,8 +637,7 @@ static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd,
         memcpy(&sg[1], data, sizeof(struct scatterlist) * (out + in - 2));
         sg_set_buf(&sg[out + in - 1], &status, sizeof(status));
 
-        if (vi->cvq->vq_ops->add_buf(vi->cvq, sg, out, in, vi) != 0)
-                BUG();
+        BUG_ON(vi->cvq->vq_ops->add_buf(vi->cvq, sg, out, in, vi));
 
         vi->cvq->vq_ops->kick(vi->cvq);
 
diff --git a/drivers/net/wireless/ath5k/reset.c b/drivers/net/wireless/ath5k/reset.c
index 7a17d31b2fd9..cb5e15f97095 100644
--- a/drivers/net/wireless/ath5k/reset.c
+++ b/drivers/net/wireless/ath5k/reset.c
@@ -54,9 +54,8 @@ static inline int ath5k_hw_write_ofdm_timings(struct ath5k_hw *ah,
         u32 coef_scaled, coef_exp, coef_man,
                 ds_coef_exp, ds_coef_man, clock;
 
-        if (!(ah->ah_version == AR5K_AR5212) ||
-                !(channel->hw_value & CHANNEL_OFDM))
-                BUG();
+        BUG_ON(!(ah->ah_version == AR5K_AR5212) ||
+                !(channel->hw_value & CHANNEL_OFDM));
 
         /* Get coefficient
          * ALGO: coef = (5 * clock * carrier_freq) / 2)
diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h
index 2689a08a2844..7b1b40aaf09d 100644
--- a/drivers/net/wireless/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath9k/ath9k.h
@@ -53,11 +53,7 @@ struct ath_node;
 
 #define A_MAX(a, b) ((a) > (b) ? (a) : (b))
 
-#define ASSERT(exp) do {                        \
-                if (unlikely(!(exp))) {         \
-                        BUG();                  \
-                }                               \
-        } while (0)
+#define ASSERT(exp) BUG_ON(!(exp))
 
 #define TSF_TO_TU(_h,_l) \
         ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index bd4dbcfe1bbe..9a123fbcc359 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -3176,11 +3176,8 @@ static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
         /* Start the Dma */
         rc = ipw_fw_dma_enable(priv);
 
-        if (priv->sram_desc.last_cb_index > 0) {
-                /* the DMA is already ready this would be a bug. */
-                BUG();
-                goto out;
-        }
+        /* the DMA is already ready this would be a bug. */
+        BUG_ON(priv->sram_desc.last_cb_index > 0);
 
         do {
                 chunk = (struct fw_chunk *)(data + offset);
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index ea3dc038be76..d649caebf08a 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -686,8 +686,7 @@ static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
                 return;
         }
 
-        if (!in_interrupt())
-                BUG();
+        BUG_ON(!in_interrupt());
 
         spin_lock(&priv->driver_lock);
 
diff --git a/drivers/net/wireless/libertas_tf/if_usb.c b/drivers/net/wireless/libertas_tf/if_usb.c
index 59634c33b1f9..392337b37b1d 100644
--- a/drivers/net/wireless/libertas_tf/if_usb.c
+++ b/drivers/net/wireless/libertas_tf/if_usb.c
@@ -461,8 +461,7 @@ static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
                 return;
         }
 
-        if (!in_interrupt())
-                BUG();
+        BUG_ON(!in_interrupt());
 
         spin_lock(&priv->driver_lock);
         memcpy(priv->cmd_resp_buff, recvbuff + MESSAGE_HEADER_LEN,