From 5649607a8d0b0e019a4db14aab3de1e16c3a2b4f Mon Sep 17 00:00:00 2001 From: Vaibhav Jain Date: Wed, 22 Jan 2020 21:21:40 +0530 Subject: [PATCH] powerpc/papr_scm: Fix leaking 'bus_desc.provider_name' in some paths 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(). Fixes: b5beae5e224f ("powerpc/pseries: Add driver for PAPR SCM regions") Signed-off-by: Vaibhav Jain Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200122155140.120429-1-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 8da39a9c5569..0b4467e378e5 100644 --- a/arch/powerpc/platforms/pseries/papr_scm.c +++ b/arch/powerpc/platforms/pseries/papr_scm.c @@ -323,6 +323,7 @@ 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;