staging: ti dspbridge: use processor handle from context instead of user's

Make sure dspbridge driver uses a valid processor handle by
using the handle stored in process context.

Signed-off-by: Ernesto Ramos <ernesto@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 29 insertions, 21 deletions

diff --git a/drivers/staging/tidspbridge/pmgr/dspapi.c b/drivers/staging/tidspbridge/pmgr/dspapi.c
index f46aaf683e37..d7613eb49dad 100644
--- a/drivers/staging/tidspbridge/pmgr/dspapi.c
+++ b/drivers/staging/tidspbridge/pmgr/dspapi.c
@@ -616,6 +616,7 @@ u32 procwrap_ctrl(union trapped_args *args, void *pr_ctxt)
             args->args_proc_ctrl.pargs;
         u8 *pargs = NULL;
         int status = 0;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         if (psize) {
                 if (get_user(cb_data_size, psize)) {
@@ -633,7 +634,7 @@ u32 procwrap_ctrl(union trapped_args *args, void *pr_ctxt)
                           cb_data_size);
         }
         if (!status) {
-                status = proc_ctrl(args->args_proc_ctrl.hprocessor,
+                status = proc_ctrl(hprocessor,
                                    args->args_proc_ctrl.dw_cmd,
                                    (struct dsp_cbdata *)pargs);
         }
@@ -663,11 +664,12 @@ u32 procwrap_enum_node_info(union trapped_args *args, void *pr_ctxt)
         void *node_tab[MAX_NODES];
         u32 num_nodes;
         u32 alloc_cnt;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         if (!args->args_proc_enumnode_info.node_tab_size)
                 return -EINVAL;
 
-        status = proc_enum_nodes(args->args_proc_enumnode_info.hprocessor,
+        status = proc_enum_nodes(hprocessor,
                                  node_tab,
                                  args->args_proc_enumnode_info.node_tab_size,
                                  &num_nodes, &alloc_cnt);
@@ -747,13 +749,14 @@ u32 procwrap_enum_resources(union trapped_args *args, void *pr_ctxt)
 {
         int status = 0;
         struct dsp_resourceinfo resource_info;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         if (args->args_proc_enumresources.resource_info_size <
             sizeof(struct dsp_resourceinfo))
                 return -EINVAL;
 
         status =
-            proc_get_resource_info(args->args_proc_enumresources.hprocessor,
+            proc_get_resource_info(hprocessor,
                                    args->args_proc_enumresources.resource_type,
                                    &resource_info,
                                    args->args_proc_enumresources.
@@ -773,13 +776,13 @@ u32 procwrap_get_state(union trapped_args *args, void *pr_ctxt)
 {
         int status;
         struct dsp_processorstate proc_state;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         if (args->args_proc_getstate.state_info_size <
             sizeof(struct dsp_processorstate))
                 return -EINVAL;
 
-        status =
-            proc_get_state(args->args_proc_getstate.hprocessor, &proc_state,
+        status = proc_get_state(hprocessor, &proc_state,
                            args->args_proc_getstate.state_info_size);
         CP_TO_USR(args->args_proc_getstate.proc_state_obj, &proc_state, status,
                   1);
@@ -794,14 +797,14 @@ u32 procwrap_get_trace(union trapped_args *args, void *pr_ctxt)
 {
         int status;
         u8 *pbuf;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         if (args->args_proc_gettrace.max_size > MAX_TRACEBUFLEN)
                 return -EINVAL;
 
         pbuf = kzalloc(args->args_proc_gettrace.max_size, GFP_KERNEL);
         if (pbuf != NULL) {
-                status = proc_get_trace(args->args_proc_gettrace.hprocessor,
-                                        pbuf,
+                status = proc_get_trace(hprocessor, pbuf,
                                         args->args_proc_gettrace.max_size);
         } else {
                 status = -ENOMEM;
@@ -823,6 +826,7 @@ u32 procwrap_load(union trapped_args *args, void *pr_ctxt)
         char *temp;
         s32 count = args->args_proc_load.argc_index;
         u8 **argv = NULL, **envp = NULL;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         if (count <= 0 || count > MAX_LOADARGS) {
                 status = -EINVAL;
@@ -905,7 +909,7 @@ u32 procwrap_load(union trapped_args *args, void *pr_ctxt)
         }
 
         if (!status) {
-                status = proc_load(args->args_proc_load.hprocessor,
+                status = proc_load(hprocessor,
                                    args->args_proc_load.argc_index,
                                    (const char **)argv, (const char **)envp);
         }
@@ -936,6 +940,7 @@ u32 procwrap_map(union trapped_args *args, void *pr_ctxt)
 {
         int status;
         void *map_addr;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         if (!args->args_proc_mapmem.ul_size)
                 return -EINVAL;
@@ -948,8 +953,7 @@ u32 procwrap_map(union trapped_args *args, void *pr_ctxt)
         if (!status) {
                 if (put_user(map_addr, args->args_proc_mapmem.pp_map_addr)) {
                         status = -EINVAL;
-                        proc_un_map(args->args_proc_mapmem.hprocessor,
-                                    map_addr, pr_ctxt);
+                        proc_un_map(hprocessor, map_addr, pr_ctxt);
                 }
 
         }
@@ -963,13 +967,13 @@ u32 procwrap_register_notify(union trapped_args *args, void *pr_ctxt)
 {
         int status;
         struct dsp_notification notification;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         /* Initialize the notification data structure */
         notification.ps_name = NULL;
         notification.handle = NULL;
 
-        status =
-            proc_register_notify(args->args_proc_register_notify.hprocessor,
+        status = proc_register_notify(hprocessor,
                                  args->args_proc_register_notify.event_mask,
                                  args->args_proc_register_notify.notify_type,
                                  &notification);
@@ -985,12 +989,13 @@ u32 procwrap_reserve_memory(union trapped_args *args, void *pr_ctxt)
 {
         int status;
         void *prsv_addr;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         if ((args->args_proc_rsvmem.ul_size <= 0) ||
             (args->args_proc_rsvmem.ul_size & (PG_SIZE4K - 1)) != 0)
                 return -EINVAL;
 
-        status = proc_reserve_memory(args->args_proc_rsvmem.hprocessor,
+        status = proc_reserve_memory(hprocessor,
                                      args->args_proc_rsvmem.ul_size, &prsv_addr,
                                      pr_ctxt);
         if (!status) {
@@ -1010,7 +1015,7 @@ u32 procwrap_start(union trapped_args *args, void *pr_ctxt)
 {
         u32 ret;
 
-        ret = proc_start(args->args_proc_start.hprocessor);
+        ret = proc_start(((struct process_context *)pr_ctxt)->hprocessor);
         return ret;
 }
 
@@ -1021,7 +1026,7 @@ u32 procwrap_un_map(union trapped_args *args, void *pr_ctxt)
 {
         int status;
 
-        status = proc_un_map(args->args_proc_unmapmem.hprocessor,
+        status = proc_un_map(((struct process_context *)pr_ctxt)->hprocessor,
                              args->args_proc_unmapmem.map_addr, pr_ctxt);
         return status;
 }
@@ -1032,8 +1037,9 @@ u32 procwrap_un_map(union trapped_args *args, void *pr_ctxt)
 u32 procwrap_un_reserve_memory(union trapped_args *args, void *pr_ctxt)
 {
         int status;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
-        status = proc_un_reserve_memory(args->args_proc_unrsvmem.hprocessor,
+        status = proc_un_reserve_memory(hprocessor,
                                         args->args_proc_unrsvmem.prsv_addr,
                                         pr_ctxt);
         return status;
@@ -1046,7 +1052,7 @@ u32 procwrap_stop(union trapped_args *args, void *pr_ctxt)
 {
         u32 ret;
 
-        ret = proc_stop(args->args_proc_stop.hprocessor);
+        ret = proc_stop(((struct process_context *)pr_ctxt)->hprocessor);
 
         return ret;
 }
@@ -1078,6 +1084,7 @@ u32 nodewrap_allocate(union trapped_args *args, void *pr_ctxt)
         struct dsp_nodeattrin proc_attr_in, *attr_in = NULL;
         struct node_res_object *node_res;
         int nodeid;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         /* Optional argument */
         if (psize) {
@@ -1108,7 +1115,7 @@ u32 nodewrap_allocate(union trapped_args *args, void *pr_ctxt)
 
         }
         if (!status) {
-                status = node_allocate(args->args_node_allocate.hprocessor,
+                status = node_allocate(hprocessor,
                                        &node_uuid, (struct dsp_cbdata *)pargs,
                                        attr_in, &node_res, pr_ctxt);
         }
@@ -1493,6 +1500,7 @@ u32 nodewrap_get_uuid_props(union trapped_args *args, void *pr_ctxt)
         int status = 0;
         struct dsp_uuid node_uuid;
         struct dsp_ndbprops *pnode_props = NULL;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
         CP_FM_USR(&node_uuid, args->args_node_getuuidprops.node_id_ptr, status,
                   1);
@@ -1501,8 +1509,7 @@ u32 nodewrap_get_uuid_props(union trapped_args *args, void *pr_ctxt)
         pnode_props = kmalloc(sizeof(struct dsp_ndbprops), GFP_KERNEL);
         if (pnode_props != NULL) {
                 status =
-                    node_get_uuid_props(args->args_node_getuuidprops.hprocessor,
-                                        &node_uuid, pnode_props);
+                    node_get_uuid_props(hprocessor, &node_uuid, pnode_props);
                 CP_TO_USR(args->args_node_getuuidprops.node_props, pnode_props,
                           status, 1);
         } else
@@ -1788,8 +1795,9 @@ u32 cmmwrap_get_handle(union trapped_args *args, void *pr_ctxt)
 {
         int status = 0;
         struct cmm_object *hcmm_mgr;
+        void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
 
-        status = cmm_get_handle(args->args_cmm_gethandle.hprocessor, &hcmm_mgr);
+        status = cmm_get_handle(hprocessor, &hcmm_mgr);
 
         CP_TO_USR(args->args_cmm_gethandle.ph_cmm_mgr, &hcmm_mgr, status, 1);