kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.
Fixes: 1978d3ead82c ("intel: fix string truncation warnings")
Cc: Kunwu Chan <kunwu.c...@hotmail.com>
Signed-off-by: Kunwu Chan <chen...@kylinos.cn>
---
drivers/net/ethernet/intel/igb/igb_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c
b/drivers/net/ethernet/intel/igb/igb_main.c
index b2295caa2f0a..6838f6fccb80 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -3102,6 +3102,8 @@ void igb_set_fw_version(struct igb_adapter *adapter)
break;
}
+ if (!lbuf)
+ return;
/* the truncate happens here if it doesn't fit */
strscpy(adapter->fw_version, lbuf, sizeof(adapter->fw_version));
kfree(lbuf);
--
2.39.2
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