EDAC, sb_edac.c: Fix signedness bugs in *_get_ha() functions.

A static checker gave the following warnings:

drivers/edac/sb_edac.c:1030 ibridge_get_ha() warn: signedness bug returning '(-22)' drivers/edac/sb_edac.c:1037 knl_get_ha() warn: signedness bug returning '(-22)'

Both because the functions are declared to return a "u8", but try to return -EINVAL for the error case.

Fix by returning 0xff (since the caller doesn't look at, or pass on, the return value).

Reported-by Dan Carpenter <[email protected]>

Signed-off-by Tony Luck <[email protected]>

---
 drivers/edac/sb_edac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)