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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-02 01:09:43 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-02 01:09:43 +0200 |
| commit | e0cd9206878a3b95024602b355b254d142f5ce94 (patch) | |
| tree | c33542ba74e86ced56383c783e32d3a160dd2ce1 /drivers/tty | |
| parent | Merge branch 'uaccess.csum' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff) | |
| parent | vmci_host: get rid of pointless access_ok() (diff) | |
| download | linux-e0cd9206878a3b95024602b355b254d142f5ce94.tar.xz linux-e0cd9206878a3b95024602b355b254d142f5ce94.zip | |
Merge branch 'uaccess.access_ok' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull uaccess/access_ok updates from Al Viro:
"Removals of trivially pointless access_ok() calls.
Note: the fiemap stuff was removed from the series, since they are
duplicates with part of ext4 series carried in Ted's tree"
* 'uaccess.access_ok' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vmci_host: get rid of pointless access_ok()
hfi1: get rid of pointless access_ok()
usb: get rid of pointless access_ok() calls
lpfc_debugfs: get rid of pointless access_ok()
efi_test: get rid of pointless access_ok()
drm_read(): get rid of pointless access_ok()
via-pmu: don't bother with access_ok()
drivers/crypto/ccp/sev-dev.c: get rid of pointless access_ok()
omapfb: get rid of pointless access_ok() calls
amifb: get rid of pointless access_ok() calls
drivers/fpga/dfl-afu-dma-region.c: get rid of pointless access_ok()
drivers/fpga/dfl-fme-pr.c: get rid of pointless access_ok()
cm4000_cs.c cmm_ioctl(): get rid of pointless access_ok()
nvram: drop useless access_ok()
n_hdlc_tty_read(): remove pointless access_ok()
tomoyo_write_control(): get rid of pointless access_ok()
btrfs_ioctl_send(): don't bother with access_ok()
fat_dir_ioctl(): hadn't needed that access_ok() for more than a decade...
dlmfs_file_write(): get rid of pointless access_ok()
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/n_hdlc.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c index 991f49ee4026..b09eac4b6d64 100644 --- a/drivers/tty/n_hdlc.c +++ b/drivers/tty/n_hdlc.c @@ -423,13 +423,6 @@ static ssize_t n_hdlc_tty_read(struct tty_struct *tty, struct file *file, struct n_hdlc_buf *rbuf; DECLARE_WAITQUEUE(wait, current); - /* verify user access to buffer */ - if (!access_ok(buf, nr)) { - pr_warn("%s(%d) %s() can't verify user buffer\n", - __FILE__, __LINE__, __func__); - return -EFAULT; - } - add_wait_queue(&tty->read_wait, &wait); for (;;) { |