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| author | Wanlong Gao <gaowanlong@cn.fujitsu.com> | 2012-08-27 15:23:12 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-05 12:41:57 -0700 |
| commit | bbb63c514a3464342967237a51a21ea8f61ab951 (patch) | |
| tree | c3f4892283439d84ee5581a9acb0d24c12f15ad8 /drivers/tty/tty_io.c | |
| parent | fd7c81f864e3d8a2847fc0e36fde78b0da2fdf2c (diff) | |
| download | linux-bbb63c514a3464342967237a51a21ea8f61ab951.tar.gz linux-bbb63c514a3464342967237a51a21ea8f61ab951.tar.bz2 linux-bbb63c514a3464342967237a51a21ea8f61ab951.zip | |
drivers:tty:fix up ENOIOCTLCMD error handling
At commit 07d106d0, Linus pointed out that ENOIOCTLCMD should be
translated as ENOTTY to user mode.
For example:
fd = open("/dev/tty", O_RDWR);
ioctl(fd, -1, &argp);
then the errno should be ENOTTY but not EINVAL.
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_io.c')
| -rw-r--r-- | drivers/tty/tty_io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 41e42f13a214..d3bf91a29303 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -2774,7 +2774,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (ld->ops->ioctl) { retval = ld->ops->ioctl(tty, file, cmd, arg); if (retval == -ENOIOCTLCMD) - retval = -EINVAL; + retval = -ENOTTY; } tty_ldisc_deref(ld); return retval; |