diff options
Diffstat (limited to 'drivers/hwmon/occ/p9_sbe.c')
| -rw-r--r-- | drivers/hwmon/occ/p9_sbe.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/hwmon/occ/p9_sbe.c b/drivers/hwmon/occ/p9_sbe.c index e50243580269..d34d6a007e8d 100644 --- a/drivers/hwmon/occ/p9_sbe.c +++ b/drivers/hwmon/occ/p9_sbe.c @@ -13,6 +13,8 @@ #include "common.h" +#define OCC_CHECKSUM_RETRIES 3 + struct p9_sbe_occ { struct occ occ; bool sbe_error; @@ -82,17 +84,22 @@ static int p9_sbe_occ_send_cmd(struct occ *occ, u8 *cmd, size_t len) struct occ_response *resp = &occ->resp; struct p9_sbe_occ *ctx = to_p9_sbe_occ(occ); size_t resp_len = sizeof(*resp); + int i; int rc; - rc = fsi_occ_submit(ctx->sbe, cmd, len, resp, &resp_len); - if (rc < 0) { + for (i = 0; i < OCC_CHECKSUM_RETRIES; ++i) { + rc = fsi_occ_submit(ctx->sbe, cmd, len, resp, &resp_len); + if (rc >= 0) + break; if (resp_len) { if (p9_sbe_occ_save_ffdc(ctx, resp, resp_len)) sysfs_notify(&occ->bus_dev->kobj, NULL, bin_attr_ffdc.attr.name); - } - return rc; + return rc; + } + if (rc != -EBADE) + return rc; } switch (resp->return_status) { |