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staging: rtl8188eu: fix possible NULL dereference

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dm_odm was being checked for NULL after dereferencing it. Lets check for
NULL first before derefenrencing it.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sudip Mukherjee 2015-08-14 21:57:51 +05:30 committed by Greg Kroah-Hartman
parent 2b05df556e
commit f1126b1d0d
1 changed files with 4 additions and 4 deletions
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8
drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c
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@ -659,11 +659,11 @@ void ODM_RA_UpdateRateInfo_8188E(struct odm_dm_struct *dm_odm, u8 macid, u8 Rate
{
struct odm_ra_info *pRaInfo = NULL;
if ((NULL == dm_odm) || (macid >= ASSOCIATE_ENTRY_NUM))
return;
ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_LOUD,
("macid =%d RateID = 0x%x RateMask = 0x%x SGIEnable =%d\n",
macid, RateID, RateMask, SGIEnable));
if ((NULL == dm_odm) || (macid >= ASSOCIATE_ENTRY_NUM))
return;
pRaInfo = &(dm_odm->RAInfo[macid]);
pRaInfo->RateID = RateID;
@ -676,10 +676,10 @@ void ODM_RA_SetRSSI_8188E(struct odm_dm_struct *dm_odm, u8 macid, u8 Rssi)
{
struct odm_ra_info *pRaInfo = NULL;
ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
(" macid =%d Rssi =%d\n", macid, Rssi));
if ((NULL == dm_odm) || (macid >= ASSOCIATE_ENTRY_NUM))
return;
ODM_RT_TRACE(dm_odm, ODM_COMP_RATE_ADAPTIVE, ODM_DBG_TRACE,
(" macid =%d Rssi =%d\n", macid, Rssi));
pRaInfo = &(dm_odm->RAInfo[macid]);
pRaInfo->RssiStaRA = Rssi;