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[PATCH v3 06/10] sysctl: drop away useless label

From Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups linux.kernel
Subject [PATCH v3 06/10] sysctl: drop away useless label
Date 2016-04-05 16:00 +0200
Message-ID <rkzGs-4wA-27@gated-at.bofh.it> (permalink)
References <rkzGq-4wA-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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We have no locking in bin_uuid(). Thus, we may remove the out label and use
return statements directly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 kernel/sysctl_binary.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index 10a1d7d..055ad65 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -1123,15 +1123,14 @@ static ssize_t bin_uuid(struct file *file,
 
 		result = kernel_read(file, 0, buf, sizeof(buf) - 1);
 		if (result < 0)
-			goto out;
+			return result;
 
 		buf[result] = '\0';
 
 		/* Convert the uuid to from a string to binary */
 		for (i = 0; i < 16; i++) {
-			result = -EIO;
 			if (!isxdigit(str[0]) || !isxdigit(str[1]))
-				goto out;
+				return -EIO;
 
 			uuid[i] = (hex_to_bin(str[0]) << 4) |
 					hex_to_bin(str[1]);
@@ -1143,15 +1142,12 @@ static ssize_t bin_uuid(struct file *file,
 		if (oldlen > 16)
 			oldlen = 16;
 
-		result = -EFAULT;
 		if (copy_to_user(oldval, uuid, oldlen))
-			goto out;
+			return -EFAULT;
 
 		copied = oldlen;
 	}
-	result = copied;
-out:
-	return result;
+	return copied;
 }
 
 static ssize_t bin_dn_node_address(struct file *file,
-- 
2.8.0.rc3

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Thread

[PATCH v3 00/10] uuid: convert users to generic UUID API Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-05 16:00 +0200
  [PATCH v3 03/10] lib/uuid: move generate_random_uuid() to uuid.c Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-05 16:00 +0200
  [PATCH v3 06/10] sysctl: drop away useless label Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-05 16:00 +0200
    Re: [PATCH v3 06/10] sysctl: drop away useless label Andrew Morton <akpm@linux-foundation.org> - 2016-04-06 00:20 +0200
      Re: [PATCH v3 06/10] sysctl: drop away useless label Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-06 13:40 +0200
  [PATCH v3 08/10] efi: redefine type, constant, macro from generic code Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-05 16:00 +0200
  [PATCH v3 02/10] ima: use %pU to output UUID in printable format Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-05 16:00 +0200
    Re: [PATCH v3 02/10] ima: use %pU to output UUID in printable format Joe Perches <joe@perches.com> - 2016-04-06 01:20 +0200
      Re: [PATCH v3 02/10] ima: use %pU to output UUID in printable format Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-06 13:10 +0200
  [PATCH v3 09/10] efivars: use generic UUID library Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-05 16:00 +0200
  [PATCH v3 07/10] sysctl: use generic UUID library Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-05 16:00 +0200
  [PATCH v3 04/10] lib/uuid: introduce few more generic helpers for UUID Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-05 16:00 +0200
    Re: [PATCH v3 04/10] lib/uuid: introduce few more generic helpers  for UUID Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-04-05 16:20 +0200

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