diff options
Diffstat (limited to 'target/linux/generic/pending-4.19/755-net-sfp-fix-hwmon.patch')
| -rw-r--r-- | target/linux/generic/pending-4.19/755-net-sfp-fix-hwmon.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/target/linux/generic/pending-4.19/755-net-sfp-fix-hwmon.patch b/target/linux/generic/pending-4.19/755-net-sfp-fix-hwmon.patch new file mode 100644 index 0000000000..9e13fbd0f2 --- /dev/null +++ b/target/linux/generic/pending-4.19/755-net-sfp-fix-hwmon.patch @@ -0,0 +1,44 @@ +From 5eb0df5023c6ae8a71a7848fd5e1f788d86e51ae Mon Sep 17 00:00:00 2001 +From: Russell King <rmk+kernel@armlinux.org.uk> +Date: Tue, 3 Dec 2019 18:46:04 +0000 +Subject: [PATCH] net: sfp: fix hwmon + +The referenced commit below allowed more than one hwmon device to be +created per SFP, which is definitely not what we want. Avoid this by +only creating the hwmon device just as we transition to WAITDEV state. + +Fixes: 139d3a212a1f ("net: sfp: allow modules with slow diagnostics to probe") +Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> +--- + drivers/net/phy/sfp.c | 13 ++++--------- + 1 file changed, 4 insertions(+), 9 deletions(-) + +--- a/drivers/net/phy/sfp.c ++++ b/drivers/net/phy/sfp.c +@@ -1714,6 +1714,10 @@ static void sfp_sm_module(struct sfp *sf + break; + } + ++ err = sfp_hwmon_insert(sfp); ++ if (err) ++ dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); ++ + sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0); + /* fall through */ + case SFP_MOD_WAITDEV: +@@ -1763,15 +1767,6 @@ static void sfp_sm_module(struct sfp *sf + case SFP_MOD_ERROR: + break; + } +- +-#if IS_ENABLED(CONFIG_HWMON) +- if (sfp->sm_mod_state >= SFP_MOD_WAITDEV && +- IS_ERR_OR_NULL(sfp->hwmon_dev)) { +- err = sfp_hwmon_insert(sfp); +- if (err) +- dev_warn(sfp->dev, "hwmon probe failed: %d\n", err); +- } +-#endif + } + + static void sfp_sm_main(struct sfp *sfp, unsigned int event) |