diff options
| author | Kees Cook <keescook@chromium.org> | 2015-06-16 15:36:17 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-06-21 09:49:55 -0700 |
| commit | 92a486ca3a45777bdec0b9fd225a8eeec82bddb7 (patch) | |
| tree | faa0170f61e6fee89a14e994c694b7cceeabd70c | |
| parent | a55e1c5c2640549ff3beb843f7ecaa242d69c351 (diff) | |
cxgb3: avoid needless buffer copy for firmware
There's no reason to perform a buffer copy for the firmware name. This
also avoids a (currently impossible with current callers) NULL dereference
if there was no matching firmware.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c index b96e4bfcac41..8f7aa53a4c4b 100644 --- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c +++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c @@ -1025,19 +1025,19 @@ int t3_get_edc_fw(struct cphy *phy, int edc_idx, int size) { struct adapter *adapter = phy->adapter; const struct firmware *fw; - char buf[64]; + const char *fw_name; u32 csum; const __be32 *p; u16 *cache = phy->phy_cache; - int i, ret; - - snprintf(buf, sizeof(buf), get_edc_fw_name(edc_idx)); + int i, ret = -EINVAL; - ret = request_firmware(&fw, buf, &adapter->pdev->dev); + fw_name = get_edc_fw_name(edc_idx); + if (fw_name) + ret = request_firmware(&fw, fw_name, &adapter->pdev->dev); if (ret < 0) { dev_err(&adapter->pdev->dev, "could not upgrade firmware: unable to load %s\n", - buf); + fw_name); return ret; } |