Merge "msm: camera: ife: pagefault_ops access protected with mutex_lock" into camera-kernel.lnx.5.0

drivers/cam_core/cam_context.c

@@ -351,6 +351,7 @@ int cam_context_dump_pf_info(struct cam_context *ctx,
 		return -EINVAL;
 	}
 
+	mutex_lock(&ctx->ctx_mutex);
 	if ((ctx->state > CAM_CTX_AVAILABLE) &&
 		(ctx->state < CAM_CTX_STATE_MAX)) {
 		if (ctx->state_machine[ctx->state].pagefault_ops) {
@@ -361,6 +362,7 @@ int cam_context_dump_pf_info(struct cam_context *ctx,
 				ctx->dev_hdl, ctx->state);
 		}
 	}
+	mutex_unlock(&ctx->ctx_mutex);
 
 	return rc;
 }