[PATCH] Char: mxser_new, alter locking in isr

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Avoid oopsing when stress-testing open/close -- port->tty is NULL sometimes,
but is expected to be non-NULL, since dereferencing.  Receive/transmit chars
iff ASYNC_CLOSING is not set and ASYNC_INITIALIZED is set.  Thanks Sergei for
pointing this out and testing.

Cc: Sergei Organov <osv@javad.com>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

...

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Jiri Slaby 2007-02-10 01:45:18 -08:00 • committed by Linus Torvalds

parent 765d94c1b3

commit f574874bc8

1 changed files with 9 additions and 13 deletions

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drivers/char/mxser_new.c

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