[PATCH, net] ibmvnic: fix empty firmware version and errors cleanup
From: Desnes Augusto Nunes do Rosario <hidden>
Date: 2018-02-05 16:34:20
Also in:
netdev
Subsystem:
ibm power sriov virtual nic device driver, linux for powerpc (32-bit and 64-bit), networking drivers, the rest · Maintainers:
Haren Myneni, Rick Lindsley, Madhavan Srinivasan, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This patch makes sure that the firmware version is never NULL. Moreover,
it also performs some cleanup on the error messages.
Fixes: a107311d7fdf ("ibmvnic: fix firmware version when no firmware level
has been provided by the VIOS server")
Signed-off-by: Desnes A. Nunes do Rosario <redacted>
---
drivers/net/ethernet/ibm/ibmvnic.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 5caaa9033841..afaf29b201dc 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c@@ -3286,7 +3286,7 @@ static void handle_vpd_rsp(union ibmvnic_crq *crq, struct ibmvnic_adapter *adapter) { struct device *dev = &adapter->vdev->dev; - unsigned char *substr = NULL, *ptr = NULL; + unsigned char *substr = NULL; u8 fw_level_len = 0; memset(adapter->fw_version, 0, 32);
@@ -3306,10 +3306,6 @@ static void handle_vpd_rsp(union ibmvnic_crq *crq, substr = strnstr(adapter->vpd->buff, "RM", adapter->vpd->len); if (!substr) { dev_info(dev, "Warning - No FW level has been provided in the VPD buffer by the VIOS Server\n"); - ptr = strncpy((char *)adapter->fw_version, "N/A", - 3 * sizeof(char)); - if (!ptr) - dev_err(dev, "Failed to inform that firmware version is unavailable to the adapter\n"); goto complete; }
@@ -3324,16 +3320,14 @@ static void handle_vpd_rsp(union ibmvnic_crq *crq, /* copy firmware version string from vpd into adapter */ if ((substr + 3 + fw_level_len) < (adapter->vpd->buff + adapter->vpd->len)) { - ptr = strncpy((char *)adapter->fw_version, - substr + 3, fw_level_len); - - if (!ptr) - dev_err(dev, "Failed to isolate FW level string\n"); + strncpy((char *)adapter->fw_version, substr + 3, fw_level_len); } else { dev_info(dev, "FW substr extrapolated VPD buff\n"); } complete: + if (adapter->fw_version[0] == '\0') + strncpy((char *)adapter->fw_version, "N/A", 3 * sizeof(char)); complete(&adapter->fw_done); }
--
2.14.3