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-rw-r--r--net/core/pktgen.c19
1 files changed, 6 insertions, 13 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index cc07c43..53c3097 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -476,14 +476,11 @@ static int pgctrl_show(struct seq_file *seq, void *v)
static ssize_t pgctrl_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
- int err = 0;
char data[128];
struct pktgen_net *pn = net_generic(current->nsproxy->net_ns, pg_net_id);
- if (!capable(CAP_NET_ADMIN)) {
- err = -EPERM;
- goto out;
- }
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
if (count == 0)
return -EINVAL;
@@ -491,10 +488,9 @@ static ssize_t pgctrl_write(struct file *file, const char __user *buf,
if (count > sizeof(data))
count = sizeof(data);
- if (copy_from_user(data, buf, count)) {
- err = -EFAULT;
- goto out;
- }
+ if (copy_from_user(data, buf, count))
+ return -EFAULT;
+
data[count - 1] = 0; /* Strip trailing '\n' and terminate string */
if (!strcmp(data, "stop"))
@@ -509,10 +505,7 @@ static ssize_t pgctrl_write(struct file *file, const char __user *buf,
else
pr_warning("Unknown command: %s\n", data);
- err = count;
-
-out:
- return err;
+ return count;
}
static int pgctrl_open(struct inode *inode, struct file *file)
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