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spi: Always check complete callback before calling it

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Since commit 1e25cd4729 "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>
This commit is contained in:
Axel Lin 2014-04-02 22:21:04 +08:00 • committed by Mark Brown
parent 455c6fdbd2
commit 0a6d38795a
7 changed files with 18 additions and 9 deletions
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3
drivers/spi/spi-mpc512x-psc.c
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@ -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);