diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-18 08:09:40 -0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-18 08:09:40 -0800 |
commit | ba4b60e85d6c5fc2242fd24e131a47fb922e5d89 (patch) | |
tree | 6be918ce3924d0677bc1029f7d1255fef48a8f85 /drivers/tty/tty_io.c | |
parent | 5dba4c56dfa660a85dc8e897990948cdec3734bf (diff) | |
parent | 6d0abeca3242a88cab8232e4acd7e2bf088f3bc2 (diff) |
Merge 3.14-rc3 into char-misc-next
We need the fixes here for future mei and other patches.
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 | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index c74a00ad7ad..bd2715a9d8e 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1267,16 +1267,17 @@ static void pty_line_name(struct tty_driver *driver, int index, char *p) * @p: output buffer of at least 7 bytes * * Generate a name from a driver reference and write it to the output - * buffer. + * buffer. Return the number of bytes written. * * Locking: None */ -static void tty_line_name(struct tty_driver *driver, int index, char *p) +static ssize_t tty_line_name(struct tty_driver *driver, int index, char *p) { if (driver->flags & TTY_DRIVER_UNNUMBERED_NODE) - strcpy(p, driver->name); + return sprintf(p, "%s", driver->name); else - sprintf(p, "%s%d", driver->name, index + driver->name_base); + return sprintf(p, "%s%d", driver->name, + index + driver->name_base); } /** @@ -3545,9 +3546,19 @@ static ssize_t show_cons_active(struct device *dev, if (i >= ARRAY_SIZE(cs)) break; } - while (i--) - count += sprintf(buf + count, "%s%d%c", - cs[i]->name, cs[i]->index, i ? ' ':'\n'); + while (i--) { + struct tty_driver *driver; + const char *name = cs[i]->name; + int index = cs[i]->index; + + driver = cs[i]->device(cs[i], &index); + if (driver) { + count += tty_line_name(driver, index, buf + count); + count += sprintf(buf + count, "%c", i ? ' ':'\n'); + } else + count += sprintf(buf + count, "%s%d%c", + name, index, i ? ' ':'\n'); + } console_unlock(); return count; |