diff mbox series

[v4,2/9] brcmfmac: firmware: Allocate space for default boardrev in nvram

Message ID 20220131160713.245637-3-marcan@marcan.st
State Accepted
Commit d19d8e3ba256f81ea4a27209dbbd1f0a00ef1903
Headers show
Series misc brcmfmac fixes (M1/T2 series spin-off) | expand

Commit Message

Hector Martin Jan. 31, 2022, 4:07 p.m. UTC
If boardrev is missing from the NVRAM we add a default one, but this
might need more space in the output buffer than was allocated. Ensure
we have enough padding for this in the buffer.

Fixes: 46f2b38a91b0 ("brcmfmac: insert default boardrev in nvram data if missing")
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Hector Martin <marcan@marcan.st>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
index 0eb13e5df517..1001c8888bfe 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -207,6 +207,8 @@  static int brcmf_init_nvram_parser(struct nvram_parser *nvp,
 		size = BRCMF_FW_MAX_NVRAM_SIZE;
 	else
 		size = data_len;
+	/* Add space for properties we may add */
+	size += strlen(BRCMF_FW_DEFAULT_BOARDREV) + 1;
 	/* Alloc for extra 0 byte + roundup by 4 + length field */
 	size += 1 + 3 + sizeof(u32);
 	nvp->nvram = kzalloc(size, GFP_KERNEL);