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Subject[PATCH 1/1] staging: rtl8192e: Remove unnecessary OOM message
This patch reduces the kernel size by removing error messages that duplicate
the normal OOM message.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr)

@@
identifier f,print,l;
expression e;
constant char[] c;
@@

e = \(kzalloc\|kmalloc\|devm_kzalloc\|devm_kmalloc\)(...);
if (e == NULL) {
<+...
- print(...,c,...);
... when any
(
goto l;
|
return ...;
)
...+> }

Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>
---
drivers/staging/rtl8192e/rtllib_module.c | 10 +++-------
drivers/staging/rtl8192e/rtllib_rx.c | 11 ++++-------
2 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib_module.c b/drivers/staging/rtl8192e/rtllib_module.c
index 248cc0d..32cc8df 100644
--- a/drivers/staging/rtl8192e/rtllib_module.c
+++ b/drivers/staging/rtl8192e/rtllib_module.c
@@ -72,11 +72,8 @@ static inline int rtllib_networks_allocate(struct rtllib_device *ieee)
ieee->networks = kzalloc(
MAX_NETWORK_COUNT * sizeof(struct rtllib_network),
GFP_KERNEL);
- if (!ieee->networks) {
- printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
- ieee->dev->name);
+ if (!ieee->networks)
return -ENOMEM;
- }

return 0;
}
@@ -161,10 +158,9 @@ struct net_device *alloc_rtllib(int sizeof_priv)
rtllib_softmac_init(ieee);

ieee->pHTInfo = kzalloc(sizeof(struct rt_hi_throughput), GFP_KERNEL);
- if (ieee->pHTInfo == NULL) {
- RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc memory for HTInfo\n");
+ if (ieee->pHTInfo == NULL)
return NULL;
- }
+
HTUpdateDefaultSetting(ieee);
HTInitializeHTInfo(ieee);
TSInitialize(ieee);
diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c
index 1664040..0a9cf44 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -394,10 +394,9 @@ static int is_duplicate_packet(struct rtllib_device *ieee,
}
if (p == &ieee->ibss_mac_hash[index]) {
entry = kmalloc(sizeof(struct ieee_ibss_seq), GFP_ATOMIC);
- if (!entry) {
- printk(KERN_WARNING "Cannot malloc new mac entry\n");
+ if (!entry)
return 0;
- }
+
memcpy(entry->mac, mac, ETH_ALEN);
entry->seq_num[tid] = seq;
entry->frag_num[tid] = frag;
@@ -1345,11 +1344,9 @@ static int rtllib_rx_InfraAdhoc(struct rtllib_device *ieee, struct sk_buff *skb,
/* skb: hdr + (possible reassembled) full plaintext payload */
payload = skb->data + hdrlen;
rxb = kmalloc(sizeof(struct rtllib_rxb), GFP_ATOMIC);
- if (rxb == NULL) {
- RTLLIB_DEBUG(RTLLIB_DL_ERR,
- "%s(): kmalloc rxb error\n", __func__);
+ if (rxb == NULL)
goto rx_dropped;
- }
+
/* to parse amsdu packets */
/* qos data packets & reserved bit is 1 */
if (parse_subframe(ieee, skb, rx_stats, rxb, src, dst) == 0) {
--
1.9.1


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