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firmware: qcom: qseecom: fix memory leaks in error paths

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Fix instances of returning error codes directly instead of jumping to
the relevant labels where memory allocated for the SCM calls would be
freed.

Fixes: 759e7a2b62 ("firmware: Add support for Qualcomm UEFI Secure Application")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202311270828.k4HGcjiL-lkp@intel.com/
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Tested-by: Deepti Jaggi <quic_djaggi@quicinc.com> #sa8775p-ride
Link: https://lore.kernel.org/r/20231127141600.20929-2-brgl@bgdev.pl
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Bartosz Golaszewski 2023-11-27 15:15:48 +01:00 committed by Bjorn Andersson
parent ff5fed86be
commit 6c57d7b593
1 changed files with 13 additions and 7 deletions
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20
drivers/firmware/qcom/qcom_qseecom_uefisecapp.c
View file

@ -325,8 +325,10 @@ static efi_status_t qsee_uefi_get_variable(struct qcuefi_client *qcuefi, const e
req_data->length = req_size;
status = ucs2_strscpy(((void *)req_data) + req_data->name_offset, name, name_length);
if (status < 0)
return EFI_INVALID_PARAMETER;
if (status < 0) {
efi_status = EFI_INVALID_PARAMETER;
goto out_free;
}
memcpy(((void *)req_data) + req_data->guid_offset, guid, req_data->guid_size);
@ -471,8 +473,10 @@ static efi_status_t qsee_uefi_set_variable(struct qcuefi_client *qcuefi, const e
req_data->length = req_size;
status = ucs2_strscpy(((void *)req_data) + req_data->name_offset, name, name_length);
if (status < 0)
return EFI_INVALID_PARAMETER;
if (status < 0) {
efi_status = EFI_INVALID_PARAMETER;
goto out_free;
}
memcpy(((void *)req_data) + req_data->guid_offset, guid, req_data->guid_size);
@ -563,8 +567,10 @@ static efi_status_t qsee_uefi_get_next_variable(struct qcuefi_client *qcuefi,
memcpy(((void *)req_data) + req_data->guid_offset, guid, req_data->guid_size);
status = ucs2_strscpy(((void *)req_data) + req_data->name_offset, name,
*name_size / sizeof(*name));
if (status < 0)
return EFI_INVALID_PARAMETER;
if (status < 0) {
efi_status = EFI_INVALID_PARAMETER;
goto out_free;
}
status = qcom_qseecom_app_send(qcuefi->client, req_data, req_size, rsp_data, rsp_size);
if (status) {
@ -635,7 +641,7 @@ static efi_status_t qsee_uefi_get_next_variable(struct qcuefi_client *qcuefi,
* have already been validated above, causing this function to
* bail with EFI_BUFFER_TOO_SMALL.
*/
return EFI_DEVICE_ERROR;
efi_status = EFI_DEVICE_ERROR;
}
out_free: