crypto: brcm - add NULL check on of_match_device() return value
Check return value from call to of_match_device()
in order to prevent a NULL pointer dereference.
In case of NULL print error message and return -ENODEV
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/bcm/cipher.c b/drivers/crypto/bcm/cipher.c
index 9cfd36c..f1a826f 100644
--- a/drivers/crypto/bcm/cipher.c
+++ b/drivers/crypto/bcm/cipher.c
@@ -4813,6 +4813,11 @@
int err;
match = of_match_device(of_match_ptr(bcm_spu_dt_ids), dev);
+ if (!match) {
+ dev_err(&pdev->dev, "Failed to match device\n");
+ return -ENODEV;
+ }
+
matched_spu_type = match->data;
if (iproc_priv.spu.num_spu > 1) {