Messages in this thread Patch in this message | | | From | Mario Limonciello <> | Subject | [PATCH 1/2] crypto: ccp: Avoid discarding errors in psp_send_platform_access_msg() | Date | Wed, 7 Feb 2024 15:54:38 -0600 |
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When the PSP_CMDRESP_STS field has an error set, the details of the error are in `req->header->status`, and the caller will want to look at them. But if there is no error set then caller may want to check `req->header->status` separately.
Stop discarding these errors.
Reported-by: Tim Van Patten <timvp@google.com> Fixes: 7ccc4f4e2e50 ("crypto: ccp - Add support for an interface for platform features") Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> --- drivers/crypto/ccp/platform-access.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/ccp/platform-access.c b/drivers/crypto/ccp/platform-access.c index 94367bc49e35..792ae8d5b11a 100644 --- a/drivers/crypto/ccp/platform-access.c +++ b/drivers/crypto/ccp/platform-access.c @@ -120,7 +120,8 @@ int psp_send_platform_access_msg(enum psp_platform_access_msg msg, /* Store the status in request header for caller to investigate */ cmd_reg = ioread32(cmd); - req->header.status = FIELD_GET(PSP_CMDRESP_STS, cmd_reg); + if (FIELD_GET(PSP_CMDRESP_STS, cmd_reg)) + req->header.status = FIELD_GET(PSP_CMDRESP_STS, cmd_reg); if (req->header.status) { ret = -EIO; goto unlock; -- 2.34.1
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