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Commit bddb1531 authored by Daeseok Youn's avatar Daeseok Youn Committed by Greg Kroah-Hartman
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staging: dgnc: Need to check for NULL of ch 



the "ch" from brd structure could be NULL, it need to
check for NULL.

Signed-off-by: default avatarDaeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c246e230

drivers/staging/dgnc/dgnc_neo.c

+1 −1
Original line number Diff line number Diff line
@@ -380,7 +380,7 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port) 
	unsigned long flags;



	ch = brd->channels[port];

	if (ch->magic != DGNC_CHANNEL_MAGIC)

	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)

		return;



	/* Here we try to figure out what caused the interrupt to happen */