From: Raveendran Somu raveendran.somu@cypress.com
[ Upstream commit bd9944918ceb28ede97f715d209e220db5e92c09 ]
The function brcmf_inform_single_bss returns the value as success, even when the length exceeds the maximum value. The fix is to send appropriate code on this error. This issue is observed when Cypress test group reported random fmac crashes when running their tests and the path was identified from the crash logs. With this fix the random failure issue in Cypress test group was resolved.
Reviewed-by: Arend van Spriel arend.vanspriel@broadcom.com Signed-off-by: Raveendran Somu raveendran.somu@cypress.com Signed-off-by: Chi-hsien Lin chi-hsien.lin@cypress.com Signed-off-by: Kalle Valo kvalo@codeaurora.org Link: https://lore.kernel.org/r/1585124429-97371-4-git-send-email-chi-hsien.lin@cy... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index a2328d3eee036..2ba165330038e 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -2953,7 +2953,7 @@ static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) { bphy_err(drvr, "Bss info is larger than buffer. Discarding\n"); - return 0; + return -EINVAL; }
if (!bi->ctl_ch) {