[PATCH v2 1/1] powerpc: fix a memory leak
From: Yuanjun Gong <hidden>
Date: 2023-09-15 02:07:09
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
When one of the methods xive_native_alloc_irq_on_chip, irq_create_mapping
or irq_get_handler_data fails, the function will directly return without
disposing vinst->name and vinst. Fix it.
Fixes: c20e1e299d93 ("powerpc/vas: Alloc and setup IRQ and trigger port address")
Signed-off-by: Yuanjun Gong <redacted>
---
arch/powerpc/platforms/powernv/vas.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/vas.c b/arch/powerpc/platforms/powernv/vas.c
index b65256a63e87..40cb7a03d180 100644
--- a/arch/powerpc/platforms/powernv/vas.c
+++ b/arch/powerpc/platforms/powernv/vas.c@@ -102,6 +102,7 @@ static int init_vas_instance(struct platform_device *pdev) res = &pdev->resource[3]; if (res->end > 62) { pr_err("Bad 'paste_win_id_shift' in DT, %llx\n", res->end); + rc = -ENODEV goto free_vinst; }
@@ -111,21 +112,24 @@ static int init_vas_instance(struct platform_device *pdev) if (!hwirq) { pr_err("Inst%d: Unable to allocate global irq for chip %d\n", vinst->vas_id, chipid); - return -ENOENT; + rc = -ENOENT; + goto free_vinst; } vinst->virq = irq_create_mapping(NULL, hwirq); if (!vinst->virq) { pr_err("Inst%d: Unable to map global irq %d\n", vinst->vas_id, hwirq); - return -EINVAL; + rc = -EINVAL; + goto free_vinst; } xd = irq_get_handler_data(vinst->virq); if (!xd) { pr_err("Inst%d: Invalid virq %d\n", vinst->vas_id, vinst->virq); - return -EINVAL; + rc = -EINVAL; + goto free_vinst; } vinst->irq_port = xd->trig_page;
@@ -168,7 +172,7 @@ static int init_vas_instance(struct platform_device *pdev) free_vinst: kfree(vinst->name); kfree(vinst); - return -ENODEV; + return rc; }
--
2.37.2