diff options
Diffstat (limited to 'target/linux/generic/backport-5.15/787-v5.12-r8152-check-if-the-pointer-of-the-function-exists.patch')
| -rw-r--r-- | target/linux/generic/backport-5.15/787-v5.12-r8152-check-if-the-pointer-of-the-function-exists.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.15/787-v5.12-r8152-check-if-the-pointer-of-the-function-exists.patch b/target/linux/generic/backport-5.15/787-v5.12-r8152-check-if-the-pointer-of-the-function-exists.patch new file mode 100644 index 0000000000..5bc4e2b0a1 --- /dev/null +++ b/target/linux/generic/backport-5.15/787-v5.12-r8152-check-if-the-pointer-of-the-function-exists.patch @@ -0,0 +1,51 @@ +From e78b75f5be204a0a235da995d01c778dc282bb42 Mon Sep 17 00:00:00 2001 +From: Hayes Wang <hayeswang@realtek.com> +Date: Fri, 19 Feb 2021 17:04:41 +0800 +Subject: [PATCH] r8152: check if the pointer of the function exists + +commit c79515e47935c747282c6ed2ee5b2ef039756eeb upstream. + +Return error code if autosuspend_en, eee_get, or eee_set don't exist. + +Signed-off-by: Hayes Wang <hayeswang@realtek.com> +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +--- + drivers/net/usb/r8152.c | 13 +++++++++++++ + 1 file changed, 13 insertions(+) + +--- a/drivers/net/usb/r8152.c ++++ b/drivers/net/usb/r8152.c +@@ -5758,6 +5758,9 @@ static int rtl8152_runtime_suspend(struc + struct net_device *netdev = tp->netdev; + int ret = 0; + ++ if (!tp->rtl_ops.autosuspend_en) ++ return -EBUSY; ++ + set_bit(SELECTIVE_SUSPEND, &tp->flags); + smp_mb__after_atomic(); + +@@ -6157,6 +6160,11 @@ rtl_ethtool_get_eee(struct net_device *n + struct r8152 *tp = netdev_priv(net); + int ret; + ++ if (!tp->rtl_ops.eee_get) { ++ ret = -EOPNOTSUPP; ++ goto out; ++ } ++ + ret = usb_autopm_get_interface(tp->intf); + if (ret < 0) + goto out; +@@ -6179,6 +6187,11 @@ rtl_ethtool_set_eee(struct net_device *n + struct r8152 *tp = netdev_priv(net); + int ret; + ++ if (!tp->rtl_ops.eee_set) { ++ ret = -EOPNOTSUPP; ++ goto out; ++ } ++ + ret = usb_autopm_get_interface(tp->intf); + if (ret < 0) + goto out; |