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authorAxel Lin <axel.lin@ingics.com>2014-04-02 22:21:04 +0800
committerMark Brown <broonie@linaro.org>2014-04-03 11:13:38 +0100
commit0a6d38795a405c49ea0012f04173613382def58c (patch)
tree41cca48cd41bdf3c9034b8f59ff5f4079f9bdaf2 /drivers/spi/spi-mpc52xx-psc.c
parent455c6fdbd219161bd09b1165f11699d6d73de11c (diff)
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 <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-mpc52xx-psc.c')
-rw-r--r--drivers/spi/spi-mpc52xx-psc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/spi/spi-mpc52xx-psc.c b/drivers/spi/spi-mpc52xx-psc.c
index 00ba910ab302..d761bc0dc5ce 100644
--- a/drivers/spi/spi-mpc52xx-psc.c
+++ b/drivers/spi/spi-mpc52xx-psc.c
@@ -248,7 +248,8 @@ static void mpc52xx_psc_spi_work(struct work_struct *work)
}
m->status = status;
- m->complete(m->context);
+ if (m->complete)
+ m->complete(m->context);
if (status || !cs_change)
mpc52xx_psc_spi_deactivate_cs(spi);