* [PATCH 3/3] staging: dgnc: Need to check for NULL of ch
@ 2016-05-09 2:47 Daeseok Youn
0 siblings, 0 replies; only message in thread
From: Daeseok Youn @ 2016-05-09 2:47 UTC (permalink / raw)
To: lidza.louina
Cc: markh, gregkh, driverdev-devel, devel, linux-kernel,
kernel-janitors
the "ch" from brd structure could be NULL, it need to
check for NULL.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
---
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
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