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Date: Fri, 23 Oct 2009 22:26:22 +0200 From: Uwe Kleine-König <u.kleine-koenig@...gutronix.de> To: linux-kernel@...r.kernel.org Cc: Russell King <rmk+kernel@....linux.org.uk>, Greg Kroah-Hartman <gregkh@...e.de>, Andrew Morton <akpm@...ux-foundation.org>, Samuel Ortiz <sameo@...ux.intel.com>, Mark Brown <broonie@...nsource.wolfsonmicro.com> Subject: platform_device_add_data(pdev, NULL, 0) Hello, mfd_add_device() (defined in drivers/mfd/mfd-core.c) is a wrapper do allocate platform_devices. It contains: ret = platform_device_add_data(pdev, cell->platform_data, cell->data_size); If cell->data_size is 0 (and so likely cell->platform_data == NULL), still pdev->dev.platform_data get assigned ZERO_SIZE_PTR. IMHO the result should better be that pdev->dev.platform_data ends being NULL, too. Agreed? If yes, where is the right place to fix that, mfd_add_device() or platform_device_add_data()? Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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