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-mpc512x-psc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/spi/spi-mpc512x-psc.c') diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c index 5032141eeeec..8eee745e8471 100644 --- a/drivers/spi/spi-mpc512x-psc.c +++ b/drivers/spi/spi-mpc512x-psc.c @@ -301,7 +301,8 @@ static int mpc512x_psc_spi_msg_xfer(struct spi_master *master, } m->status = status; - m->complete(m->context); + if (m->complete) + m->complete(m->context); if (status || !cs_change) mpc512x_psc_spi_deactivate_cs(spi); -- cgit v1.2.3