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authorGravatar Daeseok Youn <daeseok.youn@gmail.com> 2016-05-09 11:47:34 +0900
committerGravatar Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2016-05-09 14:10:03 +0200
commitbddb1531086ff40e8eb81dd1e30b56407a7a4279 (patch)
treec744a9d44d954e3d3f9de314fc3cc10e5499b330 /drivers/staging/dgnc
parentstaging: dgnc: remove redundant condition check (diff)
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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: Daeseok Youn <daeseok.youn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/dgnc')
-rw-r--r--drivers/staging/dgnc/dgnc_neo.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
index 9eae1a695980..ba57e9546f72 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 */