diff mbox series

[net,2/2] net: bcmasp: Fix device node refcount leakage in bcmasp_probe()

Message ID 20241212-drivers_fix-v1-2-a3fbb0bf6846@quicinc.com (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series net: Fix 2 OF device node refcount leakage issues | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
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/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 9 of 9 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
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: 1 this patch: 1
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 7 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Zijun Hu Dec. 12, 2024, 3:06 p.m. UTC 
From: Zijun Hu <quic_zijuhu@quicinc.com>

bcmasp_probe() invokes of_find_node_by_name(@dev->of_node, ...) and the
callee will put OF device node @dev->of_node refcount, but the caller
does not compensate the refcount before the invocation, so causes the node
refcount leakage.

Fix by of_node_get(@dev->of_node) before the invocation.

Fixes: 490cb412007d ("net: bcmasp: Add support for ASP2.0 Ethernet controller")
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
---
 drivers/net/ethernet/broadcom/asp2/bcmasp.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.c b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
index 297c2682a9cf979fbc4af211139f1b1ed0df01d5..517593c5894568111111aff0f6919fb02d780c85 100644
--- a/drivers/net/ethernet/broadcom/asp2/bcmasp.c
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
@@ -1367,6 +1367,7 @@  static int bcmasp_probe(struct platform_device *pdev)
 	bcmasp_core_init(priv);
 	bcmasp_core_init_filters(priv);
 
+	of_node_get(dev->of_node);
 	ports_node = of_find_node_by_name(dev->of_node, "ethernet-ports");
 	if (!ports_node) {
 		dev_warn(dev, "No ports found\n");