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bbswitch: silently ignore large writes

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This commit is contained in:
Lekensteyn 2011-12-27 16:04:12 +01:00
parent c6e50c9a37
commit c10907b6b3
1 changed files with 2 additions and 4 deletions
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6
bbswitch.c
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@ -249,10 +249,8 @@ static ssize_t bbswitch_proc_write(struct file *fp, const char __user *buff,
size_t len, loff_t *off) {
char cmd[8];
if (len >= sizeof(cmd)) {
printk(KERN_ERR "bbswitch: Input too large (%lu)\n", len);
return -ENOSPC;
}
if (len >= sizeof(cmd))
len = sizeof(cmd) - 1;
if (copy_from_user(cmd, buff, len))
return -EFAULT;