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| author | Luck, Tony <tony.luck@intel.com> | 2018-09-14 13:19:05 -0700 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2018-09-15 11:41:08 +0200 |
| commit | c968ed08594dadb788a93dc2bc128ed4ef35c93e (patch) | |
| tree | 8448f6d981ed72aa90061e962a74622364989476 /drivers/edac/sb_edac.c | |
| parent | 8489b17ce29d9a35a36c08bbea93cdce4c98a6ad (diff) | |
| download | blackbird-op-linux-c968ed08594dadb788a93dc2bc128ed4ef35c93e.tar.gz blackbird-op-linux-c968ed08594dadb788a93dc2bc128ed4ef35c93e.zip | |
EDAC, sb_edac: 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 <dan.carpenter@oracle.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180914201905.GA30946@agluck-desk
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac/sb_edac.c')
| -rw-r--r-- | drivers/edac/sb_edac.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index d4a10793f807..5aeb9a1ee898 100644 --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -1027,14 +1027,14 @@ static u8 ibridge_get_ha(u8 bank) case 9 ... 16: return (bank - 9) / 4; default: - return -EINVAL; + return 0xff; } } /* Not used, but included for safety/symmetry */ static u8 knl_get_ha(u8 bank) { - return -EINVAL; + return 0xff; } static u64 haswell_get_tolm(struct sbridge_pvt *pvt) |
