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authorQian Cai <cai@lca.pw>2019-10-31 10:05:19 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-04 19:18:12 +0100
commit689b2c656f3f6a05c09fd9b6dd8d459de6d9fbd6 (patch)
tree2dc26e67aae03405cb95894b4ce085ea5a3876b7 /drivers/nvdimm
parent87d9d4cdb1975efb5852f25eb63498549bc57a32 (diff)
libnvdimm/btt: fix variable 'rc' set but not used
[ Upstream commit 4e24e37d5313edca8b4ab86f240c046c731e28d6 ] drivers/nvdimm/btt.c: In function 'btt_read_pg': drivers/nvdimm/btt.c:1264:8: warning: variable 'rc' set but not used [-Wunused-but-set-variable] int rc; ^~ Add a ratelimited message in case a storm of errors is encountered. Fixes: d9b83c756953 ("libnvdimm, btt: rework error clearing") Signed-off-by: Qian Cai <cai@lca.pw> Reviewed-by: Vishal Verma <vishal.l.verma@intel.com> Link: https://lore.kernel.org/r/1572530719-32161-1-git-send-email-cai@lca.pw Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/nvdimm')
-rw-r--r--drivers/nvdimm/btt.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 3e9f45aec8d1..5129543a0473 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1261,11 +1261,11 @@ static int btt_read_pg(struct btt *btt, struct bio_integrity_payload *bip,
ret = btt_data_read(arena, page, off, postmap, cur_len);
if (ret) {
- int rc;
-
/* Media error - set the e_flag */
- rc = btt_map_write(arena, premap, postmap, 0, 1,
- NVDIMM_IO_ATOMIC);
+ if (btt_map_write(arena, premap, postmap, 0, 1, NVDIMM_IO_ATOMIC))
+ dev_warn_ratelimited(to_dev(arena),
+ "Error persistently tracking bad blocks at %#x\n",
+ premap);
goto out_rtt;
}