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From deb6176e561324884652dd6a49a862bd8b152959 Mon Sep 17 00:00:00 2001
From: Jes Sorensen <Jes.Sorensen@redhat.com>
Date: Fri, 19 Aug 2016 17:46:25 -0400
Subject: [PATCH] rtl8xxxu: Fix error handling if rtl8xxxu_init_device() fails
For some reason we lost the code bailing if rtl8xxxu_init_device()
returned an error.
This catches the error and also cleans up the error handling.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
.../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 20 +++++++++++++++++---
1 file changed, 17 insertions(+), 3 deletions(-)
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -5947,7 +5947,7 @@ static int rtl8xxxu_probe(struct usb_int
struct ieee80211_hw *hw;
struct usb_device *udev;
struct ieee80211_supported_band *sband;
- int ret = 0;
+ int ret;
int untested = 1;
udev = usb_get_dev(interface_to_usbdev(interface));
@@ -5995,6 +5995,7 @@ static int rtl8xxxu_probe(struct usb_int
hw = ieee80211_alloc_hw(sizeof(struct rtl8xxxu_priv), &rtl8xxxu_ops);
if (!hw) {
ret = -ENOMEM;
+ priv = NULL;
goto exit;
}
@@ -6043,6 +6044,8 @@ static int rtl8xxxu_probe(struct usb_int
}
ret = rtl8xxxu_init_device(hw);
+ if (ret)
+ goto exit;
hw->wiphy->max_scan_ssids = 1;
hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
@@ -6093,9 +6096,20 @@ static int rtl8xxxu_probe(struct usb_int
goto exit;
}
+ return 0;
+
exit:
- if (ret < 0)
- usb_put_dev(udev);
+ usb_set_intfdata(interface, NULL);
+
+ if (priv) {
+ kfree(priv->fw_data);
+ mutex_destroy(&priv->usb_buf_mutex);
+ mutex_destroy(&priv->h2c_mutex);
+ }
+ usb_put_dev(udev);
+
+ ieee80211_free_hw(hw);
+
return ret;
}
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