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ibmvnic: fix empty firmware version and errors cleanup

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This patch makes sure that the firmware version is never NULL. Moreover,
it also performs some cleanup on the error messages.

Fixes: a107311d7f ("ibmvnic: fix firmware version when no firmware level
has been provided by the VIOS server")
Signed-off-by: Desnes A. Nunes do Rosario <desnesn@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Desnes Augusto Nunes do Rosario 2018-02-05 14:33:55 -02:00 committed by David S. Miller
parent 4a31a6b19f
commit 21a2545bbe
1 changed files with 4 additions and 10 deletions
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14
drivers/net/ethernet/ibm/ibmvnic.c
View File

@ -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);
}