Addressed review remarks

1. Increased path buffer to PATH_MAX
2. Updated the comment block

Author: Kh-Oleg

drivers/tee/tee_core.c

@@ -223,6 +223,11 @@ int tee_session_calc_client_uuid(uuid_t *uuid, u32 connection_method,
 	 * For TEEC_LOGIN_GROUP:
 	 * gid=<gid>
 	 *
+ 	 * For TEEC_LOGIN_APPLICATION:
+	 * path=<command line path>
+  	 *
+ 	 * For TEEC_LOGIN_USER_APPLICATION:
+	 * uid=<uid>,path=<command line path>
 	 */
 
 	name = kzalloc(TEE_UUID_NS_NAME_SIZE, GFP_KERNEL);
@@ -257,7 +262,7 @@ int tee_session_calc_client_uuid(uuid_t *uuid, u32 connection_method,
 
 	case TEE_IOCTL_LOGIN_APPLICATION:
 		{
-			char path[512];
+			char path[PATH_MAX];
 			if (get_cmdline(current, path, sizeof(path)) >= sizeof(path)) {
 				rc = -E2BIG;
 				goto out_free_name;
@@ -273,7 +278,7 @@ int tee_session_calc_client_uuid(uuid_t *uuid, u32 connection_method,
 
 	case TEE_IOCTL_LOGIN_USER_APPLICATION:
 		{
-			char path[512];
+			char path[PATH_MAX];
 			if (get_cmdline(current, path, sizeof(path)) >= sizeof(path)) {
 				rc = -E2BIG;
 				goto out_free_name;