From: "Gustavo A. R. Silva" <garsi...@embeddedor.com> commit ee514c7a2379385fcec363f2f5f8db4eb56bc48c upstream.
Add code comment to make it clear that the fall-through is intentional and, OR ret with its previous value to avoid overwriting it so that callers can check the correct return value. Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com> Cc: Qiuxu Zhuo <qiuxu.z...@intel.com> Cc: Tony Luck <tony.l...@intel.com> Cc: linux-edac <linux-e...@vger.kernel.org> Link: http://lkml.kernel.org/r/20170622220535.GA4896@embeddedgus [ Massage a bit. ] Signed-off-by: Borislav Petkov <b...@suse.de> Signed-off-by: Liwei Song <liwei.s...@windriver.com> --- drivers/edac/pnd2_edac.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c index 1cad5a9af8d0..e1748d7e5190 100644 --- a/drivers/edac/pnd2_edac.c +++ b/drivers/edac/pnd2_edac.c @@ -168,14 +168,15 @@ int sbi_send(int port, int off, int op, u32 *data) static int apl_rd_reg(int port, int off, int op, void *data, size_t sz, char *name) { - int ret = 0; + int ret = 0; edac_dbg(2, "Read %s port=%x off=%x op=%x\n", name, port, off, op); switch (sz) { case 8: ret = sbi_send(port, off + 4, op, (u32 *)(data + 4)); + /* fall through */ case 4: - ret = sbi_send(port, off, op, (u32 *)data); + ret |= sbi_send(port, off, op, (u32 *)data); pnd2_printk(KERN_DEBUG, "%s=%x%08x ret=%d\n", name, sz == 8 ? *((u32 *)(data + 4)) : 0, *((u32 *)data), ret); break; -- 2.7.4 -- _______________________________________________ linux-yocto mailing list linux-yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/linux-yocto
