the "ch" from brd structure could be NULL, it need to check for NULL. Signed-off-by: Daeseok Youn <daeseok.youn@xxxxxxxxx> --- drivers/staging/dgnc/dgnc_neo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index 9eae1a6..ba57e95 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -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 */ -- 2.8.2 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
