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um: race fix: initialize delayed_work *before* registering IRQ

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... since chan_interrupt() might schedule it if there's too much
incoming data.  Kill task argument of chan_interrupt(), while
we are at it - it's always &line->task.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Al Viro
2011-09-10 08:17:04 -04:00
committed by Richard Weinberger
parent 5eaa3411a8
commit 0fcd719934
3 changed files with 15 additions and 18 deletions
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2
arch/um/drivers/chan.h
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@@ -27,7 +27,7 @@ struct chan {
void *data;
};
extern void chan_interrupt(struct line *line, struct delayed_work *task,
extern void chan_interrupt(struct line *line,
struct tty_struct *tty, int irq);
extern int parse_chan_pair(char *str, struct line *line, int device,
const struct chan_opts *opts, char **error_out);