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Diffstat (limited to 'net/caif/cfcnfg.c')
-rw-r--r--net/caif/cfcnfg.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/net/caif/cfcnfg.c b/net/caif/cfcnfg.c
index 399239a14420..cac30e676ac9 100644
--- a/net/caif/cfcnfg.c
+++ b/net/caif/cfcnfg.c
@@ -450,7 +450,7 @@ unlock:
rcu_read_unlock();
}
-void
+int
cfcnfg_add_phy_layer(struct cfcnfg *cnfg,
struct net_device *dev, struct cflayer *phy_layer,
enum cfcnfg_phy_preference pref,
@@ -459,7 +459,7 @@ cfcnfg_add_phy_layer(struct cfcnfg *cnfg,
{
struct cflayer *frml;
struct cfcnfg_phyinfo *phyinfo = NULL;
- int i;
+ int i, res = 0;
u8 phyid;
mutex_lock(&cnfg->lock);
@@ -473,12 +473,15 @@ cfcnfg_add_phy_layer(struct cfcnfg *cnfg,
goto got_phyid;
}
pr_warn("Too many CAIF Link Layers (max 6)\n");
+ res = -EEXIST;
goto out;
got_phyid:
phyinfo = kzalloc(sizeof(struct cfcnfg_phyinfo), GFP_ATOMIC);
- if (!phyinfo)
+ if (!phyinfo) {
+ res = -ENOMEM;
goto out_err;
+ }
phy_layer->id = phyid;
phyinfo->pref = pref;
@@ -492,8 +495,10 @@ got_phyid:
frml = cffrml_create(phyid, fcs);
- if (!frml)
+ if (!frml) {
+ res = -ENOMEM;
goto out_err;
+ }
phyinfo->frm_layer = frml;
layer_set_up(frml, cnfg->mux);
@@ -511,11 +516,12 @@ got_phyid:
list_add_rcu(&phyinfo->node, &cnfg->phys);
out:
mutex_unlock(&cnfg->lock);
- return;
+ return res;
out_err:
kfree(phyinfo);
mutex_unlock(&cnfg->lock);
+ return res;
}
EXPORT_SYMBOL(cfcnfg_add_phy_layer);