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adb: get rid of pointless access_ok()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2017-06-03 21:50:46 -04:00
parent 31acd2665b
commit 5a5011936e
1 changed files with 0 additions and 4 deletions
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4
drivers/macintosh/adb.c
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@ -723,8 +723,6 @@ static ssize_t adb_read(struct file *file, char __user *buf,
return -EINVAL; return -EINVAL;
if (count > sizeof(req->reply)) if (count > sizeof(req->reply))
count = sizeof(req->reply); count = sizeof(req->reply);
if (!access_ok(VERIFY_WRITE, buf, count))
return -EFAULT;
req = NULL; req = NULL;
spin_lock_irqsave(&state->lock, flags); spin_lock_irqsave(&state->lock, flags);
@ -781,8 +779,6 @@ static ssize_t adb_write(struct file *file, const char __user *buf,
return -EINVAL; return -EINVAL;
if (adb_controller == NULL) if (adb_controller == NULL)
return -ENXIO; return -ENXIO;
if (!access_ok(VERIFY_READ, buf, count))
return -EFAULT;
req = kmalloc(sizeof(struct adb_request), req = kmalloc(sizeof(struct adb_request),
GFP_KERNEL); GFP_KERNEL);