6.15-stable review patch. If anyone has any objections, please let me know.
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From: Mario Limonciello mario.limonciello@amd.com
[ Upstream commit 93103d56650d7a38ed37ba4041578310f82776ae ]
If any of the tee init fails, pass up the errors and clear the tee_ctx pointer. This will prevent cleaning up multiple times.
Fixes: ac052d8c08f9d ("platform/x86/amd/pmf: Add PMF TEE interface") Suggested-by: Dan Carpenter dan.carpenter@linaro.org Link: https://lore.kernel.org/r/20250512211154.2510397-3-superm1@kernel.org Signed-off-by: Mario Limonciello mario.limonciello@amd.com Link: https://lore.kernel.org/r/20250522003457.1516679-3-superm1@kernel.org Reviewed-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/amd/pmf/tee-if.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c index 027e992b71472..76efce48a45ce 100644 --- a/drivers/platform/x86/amd/pmf/tee-if.c +++ b/drivers/platform/x86/amd/pmf/tee-if.c @@ -420,12 +420,12 @@ static int amd_pmf_ta_open_session(struct tee_context *ctx, u32 *id, const uuid_ rc = tee_client_open_session(ctx, &sess_arg, NULL); if (rc < 0 || sess_arg.ret != 0) { pr_err("Failed to open TEE session err:%#x, rc:%d\n", sess_arg.ret, rc); - return rc; + return rc ?: -EINVAL; }
*id = sess_arg.session;
- return rc; + return 0; }
static int amd_pmf_register_input_device(struct amd_pmf_dev *dev) @@ -460,7 +460,9 @@ static int amd_pmf_tee_init(struct amd_pmf_dev *dev, const uuid_t *uuid) dev->tee_ctx = tee_client_open_context(NULL, amd_pmf_amdtee_ta_match, NULL, NULL); if (IS_ERR(dev->tee_ctx)) { dev_err(dev->dev, "Failed to open TEE context\n"); - return PTR_ERR(dev->tee_ctx); + ret = PTR_ERR(dev->tee_ctx); + dev->tee_ctx = NULL; + return ret; }
ret = amd_pmf_ta_open_session(dev->tee_ctx, &dev->session_id, uuid); @@ -500,9 +502,12 @@ static int amd_pmf_tee_init(struct amd_pmf_dev *dev, const uuid_t *uuid)
static void amd_pmf_tee_deinit(struct amd_pmf_dev *dev) { + if (!dev->tee_ctx) + return; tee_shm_free(dev->fw_shm_pool); tee_client_close_session(dev->tee_ctx, dev->session_id); tee_client_close_context(dev->tee_ctx); + dev->tee_ctx = NULL; }
int amd_pmf_init_smart_pc(struct amd_pmf_dev *dev)