[PATCH v2] wifi: brcmfmac: fix memory leak in brcmf_get_module_param

From: Abdun Nihaal
Date: Sun Mar 30 2025 - 06:35:07 EST


The memory allocated for settings is not freed when brcmf_of_probe
fails. Fix that by freeing settings before returning in error path.

Fixes: 0ff0843310b7 ("wifi: brcmfmac: Add optional lpo clock enable support")
Signed-off-by: Abdun Nihaal <abdun.nihaal@xxxxxxxxx>
---
V1 -> V2 : Add subsystem name in commit header as suggested by Arend

drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index cfcf01eb0daa..f26e4679e4ff 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -561,8 +561,10 @@ struct brcmf_mp_device *brcmf_get_module_param(struct device *dev,
if (!found) {
/* No platform data for this device, try OF and DMI data */
brcmf_dmi_probe(settings, chip, chiprev);
- if (brcmf_of_probe(dev, bus_type, settings) == -EPROBE_DEFER)
+ if (brcmf_of_probe(dev, bus_type, settings) == -EPROBE_DEFER) {
+ kfree(settings);
return ERR_PTR(-EPROBE_DEFER);
+ }
brcmf_acpi_probe(dev, bus_type, settings);
}
return settings;
--
2.47.2