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From: Vaibhav Jain <vaibhav@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Vaibhav Jain <vaibhav@linux.ibm.com>,
	Oliver O'Halloran <oohall@gmail.com>,
	"Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>
Subject: [PATCH] powerpc/papr_scm: Fix leaking 'bus_desc.provider_name' in some paths
Date: Wed, 22 Jan 2020 21:21:40 +0530	[thread overview]
Message-ID: <20200122155140.120429-1-vaibhav@linux.ibm.com> (raw)

String 'bus_desc.provider_name' allocated inside
papr_scm_nvdimm_init() will leaks in case call to
nvdimm_bus_register() fails or when papr_scm_remove() is called.

This minor patch ensures that 'bus_desc.provider_name' is freed in
error path for nvdimm_bus_register() as well as in papr_scm_remove().

Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
---
 arch/powerpc/platforms/pseries/papr_scm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/platforms/pseries/papr_scm.c b/arch/powerpc/platforms/pseries/papr_scm.c
index c2ef320ba1bf..eb420655ed0b 100644
--- a/arch/powerpc/platforms/pseries/papr_scm.c
+++ b/arch/powerpc/platforms/pseries/papr_scm.c
@@ -322,6 +322,7 @@ static int papr_scm_nvdimm_init(struct papr_scm_priv *p)
 	p->bus = nvdimm_bus_register(NULL, &p->bus_desc);
 	if (!p->bus) {
 		dev_err(dev, "Error creating nvdimm bus %pOF\n", p->dn);
+		kfree(p->bus_desc.provider_name);
 		return -ENXIO;
 	}
 
@@ -477,6 +478,7 @@ static int papr_scm_remove(struct platform_device *pdev)
 
 	nvdimm_bus_unregister(p->bus);
 	drc_pmem_unbind(p);
+	kfree(p->bus_desc.provider_name);
 	kfree(p);
 
 	return 0;
-- 
2.24.1


             reply	other threads:[~2020-01-22 15:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-22 15:51 Vaibhav Jain [this message]
2020-01-22 16:55 ` [PATCH] powerpc/papr_scm: Fix leaking 'bus_desc.provider_name' in some paths Aneesh Kumar K.V
2020-01-29  5:17 ` Michael Ellerman

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