From 0a6d38795a405c49ea0012f04173613382def58c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 2 Apr 2014 22:21:04 +0800 Subject: spi: Always check complete callback before calling it Since commit 1e25cd4729bd "spi: Do not require a completion", this checking is required to prevent NULL pointer dereference. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/spi/spi-txx9.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/spi/spi-txx9.c') diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c index 6191ced514b2..57a14977101c 100644 --- a/drivers/spi/spi-txx9.c +++ b/drivers/spi/spi-txx9.c @@ -265,7 +265,8 @@ static void txx9spi_work_one(struct txx9spi *c, struct spi_message *m) exit: m->status = status; - m->complete(m->context); + if (m->complete) + m->complete(m->context); /* normally deactivate chipselect ... unless no error and * cs_change has hinted that the next message will probably -- cgit v1.2.3