Messages in this thread | | | Date | Wed, 18 May 2011 12:42:12 -0700 | From | Greg KH <> | Subject | Re: BUG: NULL pointer deref in tty port / uart |
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On Wed, May 18, 2011 at 03:50:33PM +0100, Alan Cox wrote: > > I think it's the > > > > uart_update_termios in uart_dtr_rts (drivers/tty/serial/serial_core.c) > > > > called path: > > > > tty_port_block_til_ready > > tty_port_raise_dtr_rts > > uart_dtr_rts > > uart_update_termios > > Ah that would explain why I can't find and dup it - it isn't found in > the current -next tree. > > > c7d7abff40c27f82fe78b1091ab3fad69b2546f9 (and thereafter) > > Jiri Slaby fixed it in sorting out uart_startup > > I guess these should now get tagged for -stable.
So that would be the following patches in the linux-next tree: c7d7abff40c27f82fe78b1091ab3fad69b2546f9 serial: core, move termios handling to uart_startup 303a7a1199c20f7c9452f024a6e17bf348b6b398 serial: core, do not set DTR/RTS twice on startup 6f5c24ad0f7619502199185a026a228174a27e68 serial: core, remove uart_update_termios
right?
Anything else need to be backported?
Frederic, can you test that these 3 patches solve the problem for you? If you want, I can send them to you separately if you don't have a copy of linux-next around anywhere.
thanks,
greg k-h
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