Commit-ID: 79298acc4ba097e9ab78644e3e38902d73547c92
Gitweb: http://git.kernel.org/tip/79298acc4ba097e9ab78644e3e38902d73547c92
Author: Vikas Shivappa <vikas.shiva...@linux.intel.com>
AuthorDate: Mon, 26 Jun 2017 11:55:49 -0700
Committer: Thomas Gleixner <t...@linutronix.de>
CommitDate: Fri, 30 Jun 2017 21:20:00 +0200
x86/intel_rdt: Fix memory leak on mount failure
If mount fails, the kn_info directory is not freed causing memory leak.
Add the missing error handling path.
Fixes: 4e978d06dedb ("x86/intel_rdt: Add "info" files to resctrl file system")
Signed-off-by: Vikas Shivappa <vikas.shiva...@linux.intel.com>
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Cc: ravi.v.shan...@intel.com
Cc: tony.l...@intel.com
Cc: fenghua...@intel.com
Cc: pet...@infradead.org
Cc: vikas.shiva...@intel.com
Cc: andi.kl...@intel.com
Cc: sta...@vger.kernel.org
Link:
http://lkml.kernel.org/r/1498503368-20173-3-git-send-email-vikas.shiva...@linux.intel.com
---
arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index f5af0cc..9257bd9 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -856,11 +856,13 @@ static struct dentry *rdt_mount(struct file_system_type
*fs_type,
dentry = kernfs_mount(fs_type, flags, rdt_root,
RDTGROUP_SUPER_MAGIC, NULL);
if (IS_ERR(dentry))
- goto out_cdp;
+ goto out_destroy;
static_branch_enable(&rdt_enable_key);
goto out;
+out_destroy:
+ kernfs_remove(kn_info);
out_cdp:
cdp_disable();
out:
