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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-11-24 17:54:04 +0300 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2021-11-29 11:55:49 +0300 |
| commit | 9d7482771fac8d8e38e763263f2ca0ca12dd22c6 (patch) | |
| tree | 9436a0008cfedb595e4c63a6146831cc98111458 | |
| parent | d58071a8a76d779eedab38033ae4c821c30295a5 (diff) | |
| download | linux-9d7482771fac8d8e38e763263f2ca0ca12dd22c6.tar.xz | |
tee: amdtee: fix an IS_ERR() vs NULL bug
The __get_free_pages() function does not return error pointers it returns
NULL so fix this condition to avoid a NULL dereference.
Fixes: 757cc3e9ff1d ("tee: add AMD-TEE driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Rijo Thomas <Rijo-john.Thomas@amd.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
| -rw-r--r-- | drivers/tee/amdtee/core.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/tee/amdtee/core.c b/drivers/tee/amdtee/core.c index da6b88e80dc0..297dc62bca29 100644 --- a/drivers/tee/amdtee/core.c +++ b/drivers/tee/amdtee/core.c @@ -203,9 +203,8 @@ static int copy_ta_binary(struct tee_context *ctx, void *ptr, void **ta, *ta_size = roundup(fw->size, PAGE_SIZE); *ta = (void *)__get_free_pages(GFP_KERNEL, get_order(*ta_size)); - if (IS_ERR(*ta)) { - pr_err("%s: get_free_pages failed 0x%llx\n", __func__, - (u64)*ta); + if (!*ta) { + pr_err("%s: get_free_pages failed\n", __func__); rc = -ENOMEM; goto rel_fw; } |