[PATCH v4 10/13] bus/fsl_mc: Do not rely on caller to provide non NULL mc_io
From: Diana Craciun <hidden>
Date: 2020-08-26 09:27:25
Also in:
lkml
Subsystem:
qoriq dpaa2 fsl-mc bus driver, the rest · Maintainers:
Ioana Ciornei, Linus Torvalds
Before destroying the mc_io, check first that it was allocated. Signed-off-by: Diana Craciun <redacted> --- drivers/bus/fsl-mc/mc-io.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/fsl-mc/mc-io.c b/drivers/bus/fsl-mc/mc-io.c
index a30b53f1d87d..305015486b91 100644
--- a/drivers/bus/fsl-mc/mc-io.c
+++ b/drivers/bus/fsl-mc/mc-io.c@@ -129,7 +129,12 @@ int __must_check fsl_create_mc_io(struct device *dev, */ void fsl_destroy_mc_io(struct fsl_mc_io *mc_io) { - struct fsl_mc_device *dpmcp_dev = mc_io->dpmcp_dev; + struct fsl_mc_device *dpmcp_dev; + + if (!mc_io) + return; + + dpmcp_dev = mc_io->dpmcp_dev; if (dpmcp_dev) fsl_mc_io_unset_dpmcp(mc_io);
--
2.17.1
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