This unbreaks support for USB devices, which do not have a board_type
to create an alt_path out of and thus were running into a NULL
dereference.
Fixes: 5ff013914c62 ("brcmfmac: firmware: Allow per-board firmware binaries")
Signed-off-by: Hector Martin <marcan@xxxxxxxxx>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
index 1001c8888bfe..63821856bbe1 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -599,6 +599,9 @@ static char *brcm_alt_fw_path(const char *path, const char *board_type)
char alt_path[BRCMF_FW_NAME_LEN];
char suffix[5];
+ if (!board_type)
+ return NULL;
+
strscpy(alt_path, path, BRCMF_FW_NAME_LEN);
/* At least one character + suffix */
if (strlen(alt_path) < 5)
--
2.33.0
