eeprom: at24: correctly set the size for at24mac402

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commit 5478e478ee upstream.

There's an ilog2() expansion in AT24_DEVICE_MAGIC() which rounds down
the actual size of EUI-48 byte array in at24mac402 eeproms to 4 from 6,
making it impossible to read it all.

Fix it by manually adjusting the value in probe().

This patch contains a temporary fix that is suitable for stable
branches. Eventually we'll probably remove the call to ilog2() while
converting the magic values to actual structs.

Fixes: 0b813658c1 ("eeprom: at24: add support for at24mac series")
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Bartosz Golaszewski 2017-11-27 22:06:13 +01:00 • committed by Greg Kroah-Hartman

parent 388d8c9fa3

commit d3da2efa6d

1 changed files with 10 additions and 0 deletions

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drivers/misc/eeprom/at24.c

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