linux-kernel - [PATCH 2/8] convert sgx_set_attribute() to fdget()/fdput()

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Message-Id: <20230310212748.3679076-2-viro@zeniv.linux.org.uk>
Date:   Fri, 10 Mar 2023 21:27:42 +0000
From:   Al Viro <viro@...iv.linux.org.uk>
To:     linux-fsdevel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH 2/8] convert sgx_set_attribute() to fdget()/fdput()

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 arch/x86/kernel/cpu/sgx/main.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c
index e5a37b6e9aa5..166692f2d501 100644
--- a/arch/x86/kernel/cpu/sgx/main.c
+++ b/arch/x86/kernel/cpu/sgx/main.c
@@ -892,20 +892,19 @@ static struct miscdevice sgx_dev_provision = {
 int sgx_set_attribute(unsigned long *allowed_attributes,
 		      unsigned int attribute_fd)
 {
-	struct file *file;
+	struct fd f = fdget(attribute_fd);
 
-	file = fget(attribute_fd);
-	if (!file)
+	if (!f.file)
 		return -EINVAL;
 
-	if (file->f_op != &sgx_provision_fops) {
-		fput(file);
+	if (f.file->f_op != &sgx_provision_fops) {
+		fdput(f);
 		return -EINVAL;
 	}
 
 	*allowed_attributes |= SGX_ATTR_PROVISIONKEY;
 
-	fput(file);
+	fdput(f);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(sgx_set_attribute);
-- 
2.30.2