| commit | 31efcebb7d7196adcee73027f513d7c0bf572b47 | |
| author | Al Viro <viro@zeniv.linux.org.uk> | |
| Fri, 9 Sep 2011 23:14:02 +0000 (9 19:14 -0400) | ||
| committer | Richard Weinberger <richard@nod.at> | |
| Sat, 24 Mar 2012 23:29:53 +0000 (25 00:29 +0100) | ||
| tree | c3064342091568bd66f1f5cd85b3c1972ed697da | treesnapshot (tar.gz zip) |
| parent | d8c215adbf3901aa7d00a0f17f08d77be689f838 | commitdiff |
um: fix races between line_open() and line_config()
Pull parse_chan_pair() call into setup_one_line(), under the mutex.
We really don't want open() to succeed before parse_chan_pair() had
been done (or after it has failed, BTW). We also want "remove con<n>"
to free irqs, etc., same as "config con<n>=none".
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Pull parse_chan_pair() call into setup_one_line(), under the mutex.
We really don't want open() to succeed before parse_chan_pair() had
been done (or after it has failed, BTW). We also want "remove con<n>"
to free irqs, etc., same as "config con<n>=none".
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
| arch/um/drivers/chan_kern.c | diffblobblamehistory | |
| arch/um/drivers/line.c | diffblobblamehistory |