crypto: qat - Fix error path crash when no firmware is present

Firmware loader crashes when no firmware file is present.

Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/qat/qat_common/adf_common_drv.h b/drivers/crypto/qat/qat_common/adf_common_drv.h
index 3cea9fa..5e8f9d4 100644 (file)
--- a/drivers/crypto/qat/qat_common/adf_common_drv.h
+++ b/drivers/crypto/qat/qat_common/adf_common_drv.h
@@ -186,7 +186,7 @@ int qat_hal_init_nn(struct icp_qat_fw_loader_handle *handle,
 int qat_hal_wr_lm(struct icp_qat_fw_loader_handle *handle,
                  unsigned char ae, unsigned short lm_addr, unsigned int value);
 int qat_uclo_wr_all_uimage(struct icp_qat_fw_loader_handle *handle);
-int qat_uclo_del_uof_obj(struct icp_qat_fw_loader_handle *handle);
+void qat_uclo_del_uof_obj(struct icp_qat_fw_loader_handle *handle);
 int qat_uclo_map_uof_obj(struct icp_qat_fw_loader_handle *handle,
                         void *addr_ptr, int mem_size);
 #endif

diff --git a/drivers/crypto/qat/qat_common/qat_uclo.c b/drivers/crypto/qat/qat_common/qat_uclo.c
index 20b6b42..dd4e0d3 100644 (file)
--- a/drivers/crypto/qat/qat_common/qat_uclo.c
+++ b/drivers/crypto/qat/qat_common/qat_uclo.c
@@ -959,8 +959,6 @@ static int qat_uclo_parse_uof_obj(struct icp_qat_fw_loader_handle *handle)
        obj_handle->encap_uof_obj.beg_uof = obj_handle->obj_hdr->file_buff;
        obj_handle->encap_uof_obj.obj_hdr = (struct icp_qat_uof_objhdr *)
                                             obj_handle->obj_hdr->file_buff;
-       obj_handle->encap_uof_obj.chunk_hdr = (struct icp_qat_uof_chunkhdr *)
-          (obj_handle->obj_hdr->file_buff + sizeof(struct icp_qat_uof_objhdr));
        obj_handle->uword_in_bytes = 6;
        obj_handle->prod_type = ICP_QAT_AC_C_CPU_TYPE;
        obj_handle->prod_rev = PID_MAJOR_REV |
@@ -1040,23 +1038,25 @@ out_objbuf_err:
        return -ENOMEM;
 }
 
-int qat_uclo_del_uof_obj(struct icp_qat_fw_loader_handle *handle)
+void qat_uclo_del_uof_obj(struct icp_qat_fw_loader_handle *handle)
 {
        struct icp_qat_uclo_objhandle *obj_handle = handle->obj_handle;
        int a;
 
+       if (!obj_handle)
+               return;
+
        kfree(obj_handle->uword_buf);
        for (a = 0; a < obj_handle->uimage_num; a++)
                kfree(obj_handle->ae_uimage[a].page);
 
        for (a = 0; a <= (int)handle->hal_handle->ae_max_num; a++)
                qat_uclo_free_ae_data(&obj_handle->ae_data[a]);
-       kfree(obj_handle->obj_hdr);
 
+       kfree(obj_handle->obj_hdr);
        kfree(obj_handle->obj_buf);
        kfree(obj_handle);
        handle->obj_handle = NULL;
-       return 0;
 }
 
 static void qat_uclo_fill_uwords(struct icp_qat_uclo_objhandle *obj_handle,