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Commit e50af488 authored by Guilherme G. Piccoli's avatar Guilherme G. Piccoli Committed by Greg Kroah-Hartman
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tty: serial: jsm: Add one check against NULL pointer dereference 



All calls to neo_copy_data_from_uart_to_queue() are safeguarded
against NULL dereference of its parameter, except the one that
this patch changes.

That said, let's play safe and check for NULL in this case too.

Signed-off-by: default avatarGuilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8ca31ba8

drivers/tty/serial/jsm/jsm_neo.c

+3 −0
Original line number Diff line number Diff line
@@ -1172,6 +1172,9 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) 
				continue;



			ch = brd->channels[port];

			if (!ch)

				continue;



			neo_copy_data_from_uart_to_queue(ch);



			/* Call our tty layer to enforce queue flow control if needed. */