[PATCH] i2c: at91: add a sanity check on i2c message length
From: Wolfram Sang <hidden>
Date: 2012-11-01 22:29:22
Also in:
linux-i2c
On Wed, Oct 10, 2012 at 04:25:58PM +0200, ludovic.desroches at atmel.com wrote:
From: Ludovic Desroches <redacted> If the i2c message length is zero, i2c-at91 will directly return an error instead of trying to send a zero-length message. Signed-off-by: Ludovic Desroches <redacted>
What happens if you send a 0 byte message? Some hardware is able to do this and it will be used in SMBUS QUICK which the driver states to support according to at91_twi_func(). Regards, Wolfram -- Pengutronix e.K. | Wolfram Sang | Industrial Linux Solutions | http://www.pengutronix.de/ | -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 198 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20121101/f5d6d91d/attachment.sig>