From: Mauro Carvalho Chehab Date: Sat, 4 Jan 2014 08:42:11 +0000 (-0300) Subject: [media] em28xx-i2c: Fix error code for I2C error transfers X-Git-Tag: v3.14-rc1~20^2~58 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e63b009d6e772e3fe6df39345ca2f8949d4497e6;p=pandora-kernel.git [media] em28xx-i2c: Fix error code for I2C error transfers Follow the error codes for I2C as described at Documentation/i2c/fault-codes. In the case of the I2C status register (0x05), this is mapped into: - ENXIO - when reg 05 returns 0x10 - ETIMEDOUT - when the device is not temporarily not responding (e. g. reg 05 returning something not 0x10 or 0x00) - EIO - for generic I/O errors that don't fit into the above. In the specific case of 0-byte reads, used only during I2C device probing, it keeps returning -ENODEV. TODO: return EBUSY when reg 05 returns 0x20 on em2874 and upper. Signed-off-by: Mauro Carvalho Chehab --- Reading git-diff-tree failed