From c40701eacbaebcfe3fb6fac8ef3da653021c212c Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Sun, 8 Jan 2012 23:41:21 +0100 Subject: brcm80211: Don't leak 'vbuffer' in brcmf_sdbrcm_write_vars() If the memory allocation 'nvram_ularray = kmalloc(varsize, GFP_ATOMIC);' fails we'll leak the memory allocated to 'vbuffer' when we return -ENOMEM from the function. This patch resolves the leak by kfree()'ing the allocated memory before the return. Signed-off-by: Jesper Juhl Acked-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c index 5a002a2..f7eeee1 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c @@ -3119,8 +3119,10 @@ static int brcmf_sdbrcm_write_vars(struct brcmf_sdio *bus) /* Verify NVRAM bytes */ brcmf_dbg(INFO, "Compare NVRAM dl & ul; varsize=%d\n", varsize); nvram_ularray = kmalloc(varsize, GFP_ATOMIC); - if (!nvram_ularray) + if (!nvram_ularray) { + kfree(vbuffer); return -ENOMEM; + } /* Upload image to verify downloaded contents. */ memset(nvram_ularray, 0xaa, varsize); -- cgit v1.1