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authorJesper Juhl <jj@chaosbits.net>2012-01-08 23:41:21 +0100
committerJohn W. Linville <linville@tuxdriver.com>2012-01-10 15:46:40 -0500
commitc40701eacbaebcfe3fb6fac8ef3da653021c212c (patch)
tree8b602862745a4988a7652b55c50770d0bfc4471c /drivers/net/wireless/brcm80211
parente4922f2b5f1c2b3daa80b56a6eeca984cbee0dde (diff)
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 <jj@chaosbits.net> Acked-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/brcm80211')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 5a002a21f10..f7eeee1dcdb 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);