Messages in this thread Patch in this message | | | Date | Fri, 7 Jul 2017 01:33:33 -0500 | From | "Gustavo A. R. Silva" <> | Subject | [PATCH] 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> --- drivers/crypto/bcm/cipher.c | 5 +++++ 1 file changed, 5 insertions(+)
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 @@ 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) { -- 2.5.0
| |