From: Tim Gardner <tim.gardner@xxxxxxxxxxxxx>
Define RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE which represents the
maximimum possible firmware file size. Use it in the definition
of the buffer which receives the firmware file data.
Set RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE closer to the actual size of
the firmware file, e.g., 90000 (down from hard coded 164000). The current
size of rtlwifi/rtl8192sefw.bin is 88856.
Set max_fw_size to RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE for the size limit
check. Fix the error case where max_fw_size is not cleared if the size
limit check fails.
Cc: Chaoming Li <chaoming_li@xxxxxxxxxxxxxx>
Cc: linux-wireless@xxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Tim Gardner <tim.gardner@xxxxxxxxxxxxx>
Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
---
drivers/net/wireless/rtlwifi/rtl8192se/fw.h | 3 ++-
drivers/net/wireless/rtlwifi/rtl8192se/sw.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/fw.h b/drivers/net/wireless/rtlwifi/rtl8192se/fw.h
index babe85d..b4afff6 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/fw.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/fw.h
@@ -30,6 +30,7 @@
#define __REALTEK_FIRMWARE92S_H__
#define RTL8190_MAX_FIRMWARE_CODE_SIZE 64000
+#define RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE 90000
#define RTL8190_CPU_START_OFFSET 0x80
/* Firmware Local buffer size. 64k */
#define MAX_FIRMWARE_CODE_SIZE 0xFF00
@@ -217,7 +218,7 @@ struct rt_firmware {
u8 fw_emem[RTL8190_MAX_FIRMWARE_CODE_SIZE];
u32 fw_imem_len;
u32 fw_emem_len;
- u8 sz_fw_tmpbuffer[164000];
+ u8 sz_fw_tmpbuffer[RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE];
u32 sz_fw_tmpbufferlen;
u16 cmdpacket_fragthresold;
};
diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/sw.c b/drivers/net/wireless/rtlwifi/rtl8192se/sw.c
index ca38dd9..345d752 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/sw.c
@@ -108,6 +108,7 @@ static void rtl92se_fw_cb(const struct firmware *firmware, void *context)
if (firmware->size > rtlpriv->max_fw_size) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
"Firmware is too big!\n");
+ rtlpriv->max_fw_size = 0;
release_firmware(firmware);
return;
}
@@ -232,7 +233,7 @@ static int rtl92s_init_sw_vars(struct ieee80211_hw *hw)
return 1;
}
- rtlpriv->max_fw_size = sizeof(struct rt_firmware);
+ rtlpriv->max_fw_size = RTL8190_MAX_RAW_FIRMWARE_CODE_SIZE;
pr_info("Driver for Realtek RTL8192SE/RTL8191SE\n"
"Loading firmware %s\n", rtlpriv->cfg->fw_name);
--
1.7.9
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