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Date: Sat, 2 Nov 2013 19:17:48 +0530
From: Govindarajulu Varadarajan <govindarajulu90@...il.com>
To: davem@...emloft.net, gregkh@...uxfoundation.org,
linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
schwidefsky@...ibm.com, linville@...driver.com,
linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
IvDoorn@...il.com, sbhatewara@...are.com, samuel@...tiz.org,
chas@....nrl.navy.mil, roland@...nel.org, isdn@...ux-pingi.de,
jcliburn@...il.com, benve@...co.com, ssujith@...co.com,
jeffrey.t.kirsher@...el.com, jesse.brandeburg@...el.com,
shahed.shaikh@...gic.com, joe@...ches.com, apw@...onical.com
Cc: Govindarajulu Varadarajan <govindarajulu90@...il.com>
Subject: [PATCH net-next 07/13] driver: staging: remove unnecessary NULL check before dev_kfree_skb_any
dev_kfree_skb_any is protected from NULL. No need to check for NULL while
calling this function.
Signed-off-by: Govindarajulu Varadarajan <govindarajulu90@...il.com>
---
drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c | 3 +--
drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 3 +--
drivers/staging/rtl8188eu/core/rtw_recv.c | 6 ++----
drivers/staging/rtl8192e/rtllib_rx.c | 3 +--
drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c | 3 +--
drivers/staging/rtl8712/recv_linux.c | 3 +--
drivers/staging/rtl8712/rtl8712_recv.c | 6 ++----
drivers/staging/rtl8712/xmit_linux.c | 3 +--
drivers/staging/sbe-2t3e3/dc.c | 12 ++++--------
9 files changed, 14 insertions(+), 28 deletions(-)
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c
index 10b2210..bbafdcc 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c
@@ -138,8 +138,7 @@ ieee80211_frag_cache_get(struct ieee80211_device *ieee,
if (ieee->frag_next_idx[tid] >= IEEE80211_FRAG_CACHE_LEN)
ieee->frag_next_idx[tid] = 0;
- if (entry->skb != NULL)
- dev_kfree_skb_any(entry->skb);
+ dev_kfree_skb_any(entry->skb);
entry->first_frag_time = jiffies;
entry->seq = seq;
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index b346653..fe747b1 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -234,8 +234,7 @@ void ieee80211_txb_free(struct ieee80211_txb *txb) {
if (unlikely(!txb))
return;
for (i = 0; i < txb->nr_frags; i++)
- if (txb->fragments[i])
- dev_kfree_skb_any(txb->fragments[i]);
+ dev_kfree_skb_any(txb->fragments[i]);
kfree(txb);
}
diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index 2011657..93fb9ed 100644
--- a/drivers/staging/rtl8188eu/core/rtw_recv.c
+++ b/drivers/staging/rtl8188eu/core/rtw_recv.c
@@ -209,10 +209,8 @@ int rtw_free_recvframe(union recv_frame *precvframe, struct __queue *pfree_recv_
_func_enter_;
- if (precvframe->u.hdr.pkt) {
- dev_kfree_skb_any(precvframe->u.hdr.pkt);/* free skb by driver */
- precvframe->u.hdr.pkt = NULL;
- }
+ dev_kfree_skb_any(precvframe->u.hdr.pkt);/* free skb by driver */
+ precvframe->u.hdr.pkt = NULL;
_enter_critical_bh(&pfree_recv_queue->lock, &irqL);
diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c
index 8aeaed5..0118854 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -133,8 +133,7 @@ rtllib_frag_cache_get(struct rtllib_device *ieee,
if (ieee->frag_next_idx[tid] >= RTLLIB_FRAG_CACHE_LEN)
ieee->frag_next_idx[tid] = 0;
- if (entry->skb != NULL)
- dev_kfree_skb_any(entry->skb);
+ dev_kfree_skb_any(entry->skb);
entry->first_frag_time = jiffies;
entry->seq = seq;
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
index 59900bf..70bf7a4 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
@@ -138,8 +138,7 @@ ieee80211_frag_cache_get(struct ieee80211_device *ieee,
if (ieee->frag_next_idx[tid] >= IEEE80211_FRAG_CACHE_LEN)
ieee->frag_next_idx[tid] = 0;
- if (entry->skb != NULL)
- dev_kfree_skb_any(entry->skb);
+ dev_kfree_skb_any(entry->skb);
entry->first_frag_time = jiffies;
entry->seq = seq;
diff --git a/drivers/staging/rtl8712/recv_linux.c b/drivers/staging/rtl8712/recv_linux.c
index 495ee12..c422d1f 100644
--- a/drivers/staging/rtl8712/recv_linux.c
+++ b/drivers/staging/rtl8712/recv_linux.c
@@ -75,8 +75,7 @@ int r8712_os_recvbuf_resource_alloc(struct _adapter *padapter,
int r8712_os_recvbuf_resource_free(struct _adapter *padapter,
struct recv_buf *precvbuf)
{
- if (precvbuf->pskb)
- dev_kfree_skb_any(precvbuf->pskb);
+ dev_kfree_skb_any(precvbuf->pskb);
if (precvbuf->purb) {
usb_kill_urb(precvbuf->purb);
usb_free_urb(precvbuf->purb);
diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c
index d59a74a..9a4e87c 100644
--- a/drivers/staging/rtl8712/rtl8712_recv.c
+++ b/drivers/staging/rtl8712/rtl8712_recv.c
@@ -145,10 +145,8 @@ int r8712_free_recvframe(union recv_frame *precvframe,
struct _adapter *padapter = precvframe->u.hdr.adapter;
struct recv_priv *precvpriv = &padapter->recvpriv;
- if (precvframe->u.hdr.pkt) {
- dev_kfree_skb_any(precvframe->u.hdr.pkt);/*free skb by driver*/
- precvframe->u.hdr.pkt = NULL;
- }
+ dev_kfree_skb_any(precvframe->u.hdr.pkt);/*free skb by driver*/
+ precvframe->u.hdr.pkt = NULL;
spin_lock_irqsave(&pfree_recv_queue->lock, irqL);
list_delete(&(precvframe->u.hdr.list));
list_insert_tail(&(precvframe->u.hdr.list),
diff --git a/drivers/staging/rtl8712/xmit_linux.c b/drivers/staging/rtl8712/xmit_linux.c
index 4d22bb7..13bb27a 100644
--- a/drivers/staging/rtl8712/xmit_linux.c
+++ b/drivers/staging/rtl8712/xmit_linux.c
@@ -156,8 +156,7 @@ void r8712_xmit_resource_free(struct _adapter *padapter,
void r8712_xmit_complete(struct _adapter *padapter, struct xmit_frame *pxframe)
{
- if (pxframe->pkt)
- dev_kfree_skb_any(pxframe->pkt);
+ dev_kfree_skb_any(pxframe->pkt);
pxframe->pkt = NULL;
}
diff --git a/drivers/staging/sbe-2t3e3/dc.c b/drivers/staging/sbe-2t3e3/dc.c
index f207b9e..d8c9464 100644
--- a/drivers/staging/sbe-2t3e3/dc.c
+++ b/drivers/staging/sbe-2t3e3/dc.c
@@ -403,10 +403,8 @@ void dc_clear_descriptor_list(struct channel *sc)
/* free all data buffers on TX ring */
for (i = 0; i < SBE_2T3E3_TX_DESC_RING_SIZE; i++) {
- if (sc->ether.tx_data[i] != NULL) {
- dev_kfree_skb_any(sc->ether.tx_data[i]);
- sc->ether.tx_data[i] = NULL;
- }
+ dev_kfree_skb_any(sc->ether.tx_data[i]);
+ sc->ether.tx_data[i] = NULL;
}
}
@@ -418,10 +416,8 @@ void dc_drop_descriptor_list(struct channel *sc)
/* free all data buffers on RX ring */
for (i = 0; i < SBE_2T3E3_RX_DESC_RING_SIZE; i++) {
- if (sc->ether.rx_data[i] != NULL) {
- dev_kfree_skb_any(sc->ether.rx_data[i]);
- sc->ether.rx_data[i] = NULL;
- }
+ dev_kfree_skb_any(sc->ether.rx_data[i]);
+ sc->ether.rx_data[i] = NULL;
}
kfree(sc->ether.rx_ring);
--
1.8.4.2
--
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