diff mbox series

[net,2/3] net: ethernet: mtk_eth_wed: add missing put_device() in mtk_wed_add_hw()

Message ID 20221017035156.2497448-3-yangyingliang@huawei.com (mailing list archive)
State Accepted
Commit 9d4f20a476ca57e4c9246eb1fa2a61bea2354720
Delegated to: Netdev Maintainers
Headers show
Series net: ethernet: mtk_eth_wed: fixe some leaks | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net
netdev/fixes_present success Fixes tag present in non-next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 8 maintainers not CCed: kuba@kernel.org pabeni@redhat.com sean.wang@mediatek.com Mark-MC.Lee@mediatek.com matthias.bgg@gmail.com john@phrozen.org edumazet@google.com linux-arm-kernel@lists.infradead.org
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 27 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Yang Yingliang Oct. 17, 2022, 3:51 a.m. UTC
After calling get_device() in mtk_wed_add_hw(), in error path, put_device()
needs be called.

Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 drivers/net/ethernet/mediatek/mtk_wed.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

Comments

AngeloGioacchino Del Regno Oct. 17, 2022, 9:55 a.m. UTC | #1
Il 17/10/22 05:51, Yang Yingliang ha scritto:
> After calling get_device() in mtk_wed_add_hw(), in error path, put_device()
> needs be called.
> 
> Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)")
> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index 099b6e0df619..09bbd05bd83c 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -1077,11 +1077,11 @@  void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
 	get_device(&pdev->dev);
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
-		return;
+		goto err_put_device;
 
 	regs = syscon_regmap_lookup_by_phandle(np, NULL);
 	if (IS_ERR(regs))
-		return;
+		goto err_put_device;
 
 	rcu_assign_pointer(mtk_soc_wed_ops, &wed_ops);
 
@@ -1124,8 +1124,14 @@  void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
 
 	hw_list[index] = hw;
 
+	mutex_unlock(&hw_lock);
+
+	return;
+
 unlock:
 	mutex_unlock(&hw_lock);
+err_put_device:
+	put_device(&pdev->dev);
 }
 
 void mtk_wed_exit(void)