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From: Phillip Potter <phil@philpotter.co.uk>
To: gregkh@linuxfoundation.org
Cc: Larry.Finger@lwfinger.net, straube.linux@gmail.com,
	linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev
Subject: [PATCH 11/14] staging: r8188eu: remove Efuse_PgPacketWrite_BT function
Date: Mon,  6 Sep 2021 02:01:03 +0100	[thread overview]
Message-ID: <20210906010106.898-12-phil@philpotter.co.uk> (raw)
In-Reply-To: <20210906010106.898-1-phil@philpotter.co.uk>

Remove static Efuse_PgPacketWrite_BT and its one caller from
core/rtw_efuse.c. This function is a wrapper function which calls
the Efuse_PgPacketWrite_BT function pointer of struct hal_ops
unconditionally. As this function pointer is never set, and this
function call is possible to reach, this could lead to an attempt to
deference a NULL pointer, which would crash the driver.

Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
---
 drivers/staging/r8188eu/core/rtw_efuse.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_efuse.c b/drivers/staging/r8188eu/core/rtw_efuse.c
index c1c70648f5bc..e1a9c031435b 100644
--- a/drivers/staging/r8188eu/core/rtw_efuse.c
+++ b/drivers/staging/r8188eu/core/rtw_efuse.c
@@ -351,15 +351,6 @@ int Efuse_PgPacketWrite(struct adapter *pAdapter, u8 offset, u8 word_en, u8 *dat
 	return ret;
 }
 
-static int Efuse_PgPacketWrite_BT(struct adapter *pAdapter, u8 offset, u8 word_en, u8 *data, bool pseudo)
-{
-	int ret;
-
-	ret =  pAdapter->HalFunc.Efuse_PgPacketWrite_BT(pAdapter, offset, word_en, data, pseudo);
-
-	return ret;
-}
-
 /*-----------------------------------------------------------------------------
  * Function:	efuse_WordEnableDataRead
  *
@@ -676,9 +667,7 @@ u8 rtw_BT_efuse_map_write(struct adapter *padapter, u16 addr, u16 cnts, u8 *data
 				DBG_88E("0x%02X ", newdata[i]);
 			DBG_88E("\n");
 
-			ret = Efuse_PgPacketWrite_BT(padapter, offset, word_en, newdata, false);
-			if (ret == _FAIL)
-				break;
+			break;
 		}
 
 		if (idx == cnts)
-- 
2.31.1


  parent reply	other threads:[~2021-09-06  1:02 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-06  1:00 [PATCH 00/14] staging: r8188eu: cleanup unset pointers in Phillip Potter
2021-09-06  1:00 ` [PATCH 01/14] staging: r8188eu: remove rtw_hal_reset_security_engine function Phillip Potter
2021-09-06  1:00 ` [PATCH 02/14] staging: r8188eu: remove hal_reset_security_engine from struct hal_ops Phillip Potter
2021-09-06  8:25   ` Dan Carpenter
2021-09-06 23:05     ` Phillip Potter
2021-09-06  1:00 ` [PATCH 03/14] staging: r8188eu: remove rtw_hal_enable_interrupt function Phillip Potter
2021-09-06  1:00 ` [PATCH 04/14] staging: r8188eu: remove enable_interrupt from struct hal_ops Phillip Potter
2021-09-06  1:00 ` [PATCH 05/14] staging: r8188eu: remove rtw_hal_disable_interrupt function Phillip Potter
2021-09-06  1:00 ` [PATCH 06/14] staging: r8188eu: remove disable_interrupt from struct hal_ops Phillip Potter
2021-09-06  1:00 ` [PATCH 07/14] staging: r8188eu: remove rtw_hal_interrupt_handler function Phillip Potter
2021-09-06  1:01 ` [PATCH 08/14] staging: r8188eu: remove interrupt_handler from struct hal_ops Phillip Potter
2021-09-06  1:01 ` [PATCH 09/14] staging: r8188eu: remove rtw_hal_xmitframe_enqueue function Phillip Potter
2021-09-06  1:01 ` [PATCH 10/14] staging: r8188eu: remove hal_xmitframe_enqueue from struct hal_ops Phillip Potter
2021-09-06  1:01 ` Phillip Potter [this message]
2021-09-06  1:01 ` [PATCH 12/14] staging: r8188eu: remove Efuse_PgPacketWrite_BT " Phillip Potter
2021-09-06  1:01 ` [PATCH 13/14] staging: r8188eu: remove rtw_hal_c2h_id_filter_ccx function Phillip Potter
2021-09-06  1:01 ` [PATCH 14/14] staging: r8188eu: remove c2h_id_filter_ccx from struct hal_ops Phillip Potter

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