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From: Alex Dewar <alex.dewar@gmx.co.uk>
To: unlisted-recipients:; (no To-header on input)
Cc: Alex Dewar <alex.dewar@gmx.co.uk>, Jeff Dike <jdike@addtoit.com>,
	Richard Weinberger <richard@nod.at>,
	Anton Ivanov <anton.ivanov@cambridgegreys.com>,
	linux-um@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] um: Remove some unnecessary NULL checks in vector_user.c
Date: Fri, 27 Mar 2020 19:36:25 +0000	[thread overview]
Message-ID: <20200327193626.82329-1-alex.dewar@gmx.co.uk> (raw)

kfree() already checks for null pointers, so additional checking is
unnecessary.

Signed-off-by: Alex Dewar <alex.dewar@gmx.co.uk>
---
 arch/um/drivers/vector_user.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/arch/um/drivers/vector_user.c b/arch/um/drivers/vector_user.c
index ddcd917be0af..aa28e9eecb7b 100644
--- a/arch/um/drivers/vector_user.c
+++ b/arch/um/drivers/vector_user.c
@@ -221,8 +221,7 @@ static struct vector_fds *user_init_tap_fds(struct arglist *ifspec)
 	return result;
 tap_cleanup:
 	printk(UM_KERN_ERR "user_init_tap: init failed, error %d", fd);
-	if (result != NULL)
-		kfree(result);
+	kfree(result);
 	return NULL;
 }

@@ -266,8 +265,7 @@ static struct vector_fds *user_init_hybrid_fds(struct arglist *ifspec)
 	return result;
 hybrid_cleanup:
 	printk(UM_KERN_ERR "user_init_hybrid: init failed");
-	if (result != NULL)
-		kfree(result);
+	kfree(result);
 	return NULL;
 }

@@ -344,10 +342,8 @@ static struct vector_fds *user_init_unix_fds(struct arglist *ifspec, int id)
 unix_cleanup:
 	if (fd >= 0)
 		os_close_file(fd);
-	if (remote_addr != NULL)
-		kfree(remote_addr);
-	if (result != NULL)
-		kfree(result);
+	kfree(remote_addr);
+	kfree(result);
 	return NULL;
 }

@@ -382,8 +378,7 @@ static struct vector_fds *user_init_raw_fds(struct arglist *ifspec)
 	return result;
 raw_cleanup:
 	printk(UM_KERN_ERR "user_init_raw: init failed, error %d", err);
-	if (result != NULL)
-		kfree(result);
+	kfree(result);
 	return NULL;
 }

--
2.26.0


             reply	other threads:[~2020-03-27 19:38 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-27 19:36 Alex Dewar [this message]
2020-03-29 21:57 ` [PATCH] um: Remove some unnecessary NULL checks in vector_user.c Richard Weinberger

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