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authorGustavo A. R. Silva <garsilva@embeddedor.com>2017-07-07 09:33:33 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2017-07-18 13:15:57 +0300
commitc6090480b27ac7148bf4087f2112ed9c05f34c2b (patch)
tree6021f85e0e54bff5fd93b56e1f8f62e2a3aebde6 /drivers/crypto/bcm
parent24086e3d44e1282e64f4bb4801838e554f43a709 (diff)
downloadlinux-c6090480b27ac7148bf4087f2112ed9c05f34c2b.tar.xz
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>
Diffstat (limited to 'drivers/crypto/bcm')
-rw-r--r--drivers/crypto/bcm/cipher.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/crypto/bcm/cipher.c b/drivers/crypto/bcm/cipher.c
index 9cfd36c1bcb6..f1a826f97fec 100644
--- a/drivers/crypto/bcm/cipher.c
+++ b/drivers/crypto/bcm/cipher.c
@@ -4813,6 +4813,11 @@ static int spu_dt_read(struct platform_device *pdev)
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) {