[PATCH] wifi: brcmfmac: Add null pointer check to brcmf_acpi_probe
Li Qiang <[email protected]> Wed, 15 Oct 2025 15:16:07 +0800
| Newsgroups | dev.linux.lists.brcm80211,org.kernel.vger.linux-kernel,org.kernel.vger.linux-wireless |
|---|---|
| Message-ID | <[email protected]> |
devm_kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.
Fixes: 0f485805d008a ("wifi: brcmfmac: acpi: Add support for fetching Apple ACPI properties")
Signed-off-by: Li Qiang <[email protected]>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/acpi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/acpi.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/acpi.c
index c4a54861bfb4..f8f6433bdf69 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/acpi.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/acpi.c
@@ -25,6 +25,8 @@ void brcmf_acpi_probe(struct device *dev, enum brcmf_bus_type bus_type,
settings->board_type = devm_kasprintf(dev, GFP_KERNEL,
"apple,%s",
o->string.pointer);
+ if (!settings->board_type)
+ return;
} else {
brcmf_dbg(INFO, "No ACPI module-instance\n");
return;
--
2.25.1