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| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-09-10 01:14:02 +0200 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2012-03-25 00:29:53 +0100 |
| commit | 31efcebb7d7196adcee73027f513d7c0bf572b47 (patch) | |
| tree | c3064342091568bd66f1f5cd85b3c1972ed697da /arch/um/drivers/mmapper_kern.c | |
| parent | um: convert count_lock to mutex, fix a race in line_open() (diff) | |
| download | linux-31efcebb7d7196adcee73027f513d7c0bf572b47.tar.xz linux-31efcebb7d7196adcee73027f513d7c0bf572b47.zip | |
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>
Diffstat (limited to 'arch/um/drivers/mmapper_kern.c')
0 files changed, 0 insertions, 0 deletions