diff mbox

[v2] rtlwifi: Fix fallback firmware loading

Message ID 87d18gmvsq.fsf_-_@turtle.gmx.de (mailing list archive)
State Accepted
Commit 1d9b168d8ea9a0f51947d0e2f84856e77d2fe7ff
Delegated to: Kalle Valo
Headers show

Commit Message

Sven Joachim July 31, 2017, 4:10 p.m. UTC
Commit f70e4df2b384 ("rtlwifi: Add code to read new versions of
firmware") added code to load an old firmware file if the new one is
not available.  Unfortunately that code is never reached because
request_firmware_nowait() does not wait for the firmware to show up
and returns 0 even if the file is not there.

Use the existing fallback mechanism introduced by commit 62009b7f1279
("rtlwifi: rtl8192cu: Add new firmware") instead.

Fixes: f70e4df2b384 ("rtlwifi: Add code to read new versions of firmware")
Cc: stable@vger.kernel.org
Signed-off-by: Sven Joachim <svenjoac@gmx.de>
---
 drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c | 17 +++++------------
 drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c | 17 +++++------------
 2 files changed, 10 insertions(+), 24 deletions(-)

Comments

Kalle Valo Aug. 3, 2017, 9:36 a.m. UTC | #1
Sven Joachim <svenjoac@gmx.de> wrote:

> Commit f70e4df2b384 ("rtlwifi: Add code to read new versions of
> firmware") added code to load an old firmware file if the new one is
> not available.  Unfortunately that code is never reached because
> request_firmware_nowait() does not wait for the firmware to show up
> and returns 0 even if the file is not there.
> 
> Use the existing fallback mechanism introduced by commit 62009b7f1279
> ("rtlwifi: rtl8192cu: Add new firmware") instead.
> 
> Fixes: f70e4df2b384 ("rtlwifi: Add code to read new versions of firmware")
> Cc: stable@vger.kernel.org
> Signed-off-by: Sven Joachim <svenjoac@gmx.de>

Patch applied to wireless-drivers-next.git, thanks.

1d9b168d8ea9 rtlwifi: Fix fallback firmware loading
diff mbox

Patch

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c
index 56c05c4e1499..f47d839f388d 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c
@@ -187,18 +187,10 @@  int rtl8723be_init_sw_vars(struct ieee80211_hw *hw)
 				      rtlpriv->io.dev, GFP_KERNEL, hw,
 				      rtl_fw_cb);
 	if (err) {
-		/* Failed to get firmware. Check if old version available */
-		fw_name = "rtlwifi/rtl8723befw.bin";
-		pr_info("Using firmware %s\n", fw_name);
-		err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
-					      rtlpriv->io.dev, GFP_KERNEL, hw,
-					      rtl_fw_cb);
-		if (err) {
-			pr_err("Failed to request firmware!\n");
-			vfree(rtlpriv->rtlhal.pfirmware);
-			rtlpriv->rtlhal.pfirmware = NULL;
-			return 1;
-		}
+		pr_err("Failed to request firmware!\n");
+		vfree(rtlpriv->rtlhal.pfirmware);
+		rtlpriv->rtlhal.pfirmware = NULL;
+		return 1;
 	}
 	return 0;
 }
@@ -289,6 +281,7 @@  static const struct rtl_hal_cfg rtl8723be_hal_cfg = {
 	.bar_id = 2,
 	.write_readback = true,
 	.name = "rtl8723be_pci",
+	.alt_fw_name = "rtlwifi/rtl8723befw.bin",
 	.ops = &rtl8723be_hal_ops,
 	.mod_params = &rtl8723be_mod_params,
 	.maps[SYS_ISO_CTRL] = REG_SYS_ISO_CTRL,
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c
index ec2d577ba85b..5925edf7877f 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c
@@ -216,18 +216,10 @@  int rtl8821ae_init_sw_vars(struct ieee80211_hw *hw)
 				      rtlpriv->io.dev, GFP_KERNEL, hw,
 				      rtl_fw_cb);
 	if (err) {
-		/* Failed to get firmware. Check if old version available */
-		fw_name = "rtlwifi/rtl8821aefw.bin";
-		pr_info("Using firmware %s\n", fw_name);
-		err = request_firmware_nowait(THIS_MODULE, 1, fw_name,
-					      rtlpriv->io.dev, GFP_KERNEL, hw,
-					      rtl_fw_cb);
-		if (err) {
-			pr_err("Failed to request normal firmware!\n");
-			vfree(rtlpriv->rtlhal.wowlan_firmware);
-			vfree(rtlpriv->rtlhal.pfirmware);
-			return 1;
-		}
+		pr_err("Failed to request normal firmware!\n");
+		vfree(rtlpriv->rtlhal.wowlan_firmware);
+		vfree(rtlpriv->rtlhal.pfirmware);
+		return 1;
 	}
 	/*load wowlan firmware*/
 	pr_info("Using firmware %s\n", wowlan_fw_name);
@@ -331,6 +323,7 @@  static const struct rtl_hal_cfg rtl8821ae_hal_cfg = {
 	.bar_id = 2,
 	.write_readback = true,
 	.name = "rtl8821ae_pci",
+	.alt_fw_name = "rtlwifi/rtl8821aefw.bin",
 	.ops = &rtl8821ae_hal_ops,
 	.mod_params = &rtl8821ae_mod_params,
 	.maps[SYS_ISO_CTRL] = REG_SYS_ISO_CTRL,