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staging: r8188eu: fix rtw_alloc_hwxmits error detection for now 

[ Upstream commit 5b7419ae1d ]

In _rtw_init_xmit_priv, we use the res variable to store the error
return from the newly converted rtw_alloc_hwxmits function. Sadly, the
calling function interprets res using _SUCCESS and _FAIL still, meaning
we change the semantics of the variable, even in the success case.

This leads to the following on boot:
r8188eu 1-2:1.0: _rtw_init_xmit_priv failed

In the long term, we should reverse these semantics, but for now, this
fixes the driver. Also, inside rtw_alloc_hwxmits remove the if blocks,
as HWXMIT_ENTRY is always 4.

Fixes: f94b47c6bd ("staging: r8188eu: add check for kzalloc")
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20220521204741.921-1-phil@philpotter.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Phillip Potter 2022-05-21 21:47:41 +01:00 committed by Greg Kroah-Hartman
parent 6a816a0b6c
commit d56bc9e876
1 changed files with 5 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/staging/r8188eu/core/rtw_xmit.c
View File

@ -179,8 +179,7 @@ s32 _rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
pxmitpriv->free_xmit_extbuf_cnt = num_xmit_extbuf;
res = rtw_alloc_hwxmits(padapter);
if (res) {
if (rtw_alloc_hwxmits(padapter)) {
res = _FAIL;
goto exit;
}
@ -1534,19 +1533,10 @@ int rtw_alloc_hwxmits(struct adapter *padapter)
hwxmits = pxmitpriv->hwxmits;
if (pxmitpriv->hwxmit_entry == 5) {
hwxmits[0] .sta_queue = &pxmitpriv->bm_pending;
hwxmits[1] .sta_queue = &pxmitpriv->vo_pending;
hwxmits[2] .sta_queue = &pxmitpriv->vi_pending;
hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
hwxmits[4] .sta_queue = &pxmitpriv->be_pending;
} else if (pxmitpriv->hwxmit_entry == 4) {
hwxmits[0] .sta_queue = &pxmitpriv->vo_pending;
hwxmits[1] .sta_queue = &pxmitpriv->vi_pending;
hwxmits[2] .sta_queue = &pxmitpriv->be_pending;
hwxmits[3] .sta_queue = &pxmitpriv->bk_pending;
} else {
}
hwxmits[0].sta_queue = &pxmitpriv->vo_pending;
hwxmits[1].sta_queue = &pxmitpriv->vi_pending;
hwxmits[2].sta_queue = &pxmitpriv->be_pending;
hwxmits[3].sta_queue = &pxmitpriv->bk_pending;
return 0;
}