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/openbmc/linux/drivers/firmware/broadcom/
H A Dbcm47xx_nvram.cdiff 4c11e554fb894b381a3dc47069259d87a2e6ffc9 Thu Mar 17 16:17:20 CDT 2016 Aaro Koskinen <aaro.koskinen@iki.fi> drivers/firmware/broadcom/bcm47xx_nvram.c: fix incorrect __ioread32_copy

Commit 1f330c327900 ("drivers/firmware/broadcom/bcm47xx_nvram.c: use
__ioread32_copy() instead of open-coding") switched to use a generic
copy function, but failed to notice that the header pointer is updated
between the two copies, resulting in bogus data being copied in the
latter one. Fix by keeping the old header pointer.

The patch fixes totally broken networking on WRT54GL router (both LAN and
WLAN interfaces fail to probe).

Fixes: 1f330c327900 ("drivers/firmware/broadcom/bcm47xx_nvram.c: use __ioread32_copy() instead of open-coding")
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Rafal Milecki <zajec5@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: <stable@vger.kernel.org> [4.4.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>