linux-kernel - [PATCH 1/2] intel_rdt: fix a build warnning

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Message-ID: <a56a556f6768dc12cadbf97f49e000189056f90e.1478207143.git.shli@fb.com>
Date:   Thu, 3 Nov 2016 14:09:05 -0700
From:   Shaohua Li <shli@...com>
To:     <linux-kernel@...r.kernel.org>
CC:     <fenghua.yu@...el.com>, <tony.luck@...el.com>, <tglx@...utronix.de>
Subject: [PATCH 1/2] intel_rdt: fix a build warnning

gcc complains:
"warning: ‘dentry’ may be used uninitialized in this function"

Signed-off-by: Shaohua Li <shli@...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 a90ad22..e66c7a5 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -691,8 +691,10 @@ static struct dentry *rdt_mount(struct file_system_type *fs_type,
 	closid_init();
 
 	ret = rdtgroup_create_info_dir(rdtgroup_default.kn);
-	if (ret)
+	if (ret) {
+		dentry = ERR_PTR(ret);
 		goto out_cdp;
+	}
 
 	dentry = kernfs_mount(fs_type, flags, rdt_root,
 			      RDTGROUP_SUPER_MAGIC, NULL);
-- 
2.9.3