From: Justin Waters Date: Fri, 3 Apr 2009 20:03:59 +0000 (+0100) Subject: [ARM] 5445/1: AT91: Remove flexible array from USBH platform data X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=d0176f612f5c3edca00b9d0cc65555ad34843ec7;p=deliverable%2Flinux.git [ARM] 5445/1: AT91: Remove flexible array from USBH platform data The flexible array in the USBH platform data is not safe to copy. The compiler will not allocate any extra memory for the non-init platform data structure (in the *_devices.c files) since it isn't given any defaults at compile time. When the probe function attempts to address that array, it will actually attempt to access data in an adjacent structure. Since there are currently no (known) implementations of the at91 USBH IP with more than 2 vbus pins, I am capping the value at 2. If somebody tries to assign more, then the compiler will produce a warning. Signed-off-by: Justin Waters Acked-by: David Brownell Acked-by: Andrew Victor Signed-off-by: Russell King --- diff --git a/arch/arm/mach-at91/include/mach/board.h b/arch/arm/mach-at91/include/mach/board.h index 793fe7b25f36..e6afff849b85 100644 --- a/arch/arm/mach-at91/include/mach/board.h +++ b/arch/arm/mach-at91/include/mach/board.h @@ -87,7 +87,7 @@ extern void __init at91_add_device_eth(struct at91_eth_data *data); /* USB Host */ struct at91_usbh_data { u8 ports; /* number of ports on root hub */ - u8 vbus_pin[]; /* port power-control pin */ + u8 vbus_pin[2]; /* port power-control pin */ }; extern void __init at91_add_device_usbh(struct at91_usbh_data *data);