caif: Remove OOM messages, use kzalloc

Remove per site OOM messages because they duplicate
the generic mm subsystem OOM message.

Use kzalloc instead of kmalloc/memset
when next to the OOM message removals.

Reduces object size (allyesconfig ~2%)

$ size -t drivers/net/caif/built-in.o.old net/caif/built-in.o.old
   text	   data	    bss	    dec	    hex	filename
  32297	    700	   8224	  41221	   a105	drivers/net/caif/built-in.o.old
  72159	   1317	  20552	  94028	  16f4c	net/caif/built-in.o.old
 104456	   2017	  28776	 135249	  21051	(TOTALS)
$ size -t drivers/net/caif/built-in.o.new net/caif/built-in.o.new
   text	   data	    bss	    dec	    hex	filename
  31975	    700	   8184	  40859	   9f9b	drivers/net/caif/built-in.o.new
  70748	   1317	  20152	  92217	  16839	net/caif/built-in.o.new
 102723	   2017	  28336	 133076	  207d4	(TOTALS)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 12 deletions

diff --git a/net/caif/cfcnfg.c b/net/caif/cfcnfg.c
index 52fe33bee029..f07ab8c22224 100644
--- a/net/caif/cfcnfg.c
+++ b/net/caif/cfcnfg.c
@@ -78,10 +78,8 @@ struct cfcnfg *cfcnfg_create(void)
 
         /* Initiate this layer */
         this = kzalloc(sizeof(struct cfcnfg), GFP_ATOMIC);
-        if (!this) {
-                pr_warn("Out of memory\n");
+        if (!this)
                 return NULL;
-        }
         this->mux = cfmuxl_create();
         if (!this->mux)
                 goto out_of_mem;
@@ -108,8 +106,6 @@ struct cfcnfg *cfcnfg_create(void)
 
         return this;
 out_of_mem:
-        pr_warn("Out of memory\n");
-
         synchronize_rcu();
 
         kfree(this->mux);
@@ -448,10 +444,8 @@ cfcnfg_linkup_rsp(struct cflayer *layer, u8 channel_id, enum cfctrl_srv serv,
                                 "- unknown channel type\n");
                 goto unlock;
         }
-        if (!servicel) {
-                pr_warn("Out of memory\n");
+        if (!servicel)
                 goto unlock;
-        }
         layer_set_dn(servicel, cnfg->mux);
         cfmuxl_set_uplayer(cnfg->mux, servicel, channel_id);
         layer_set_up(servicel, adapt_layer);
@@ -497,10 +491,8 @@ got_phyid:
         case CFPHYTYPE_FRAG:
                 phy_driver =
                     cfserl_create(CFPHYTYPE_FRAG, phyid, stx);
-                if (!phy_driver) {
-                        pr_warn("Out of memory\n");
+                if (!phy_driver)
                         goto out;
-                }
                 break;
         case CFPHYTYPE_CAIF:
                 phy_driver = NULL;
@@ -521,7 +513,6 @@ got_phyid:
         frml = cffrml_create(phyid, fcs);
 
         if (!frml) {
-                pr_warn("Out of memory\n");
                 kfree(phyinfo);
                 goto out;
         }