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From: "Maciej Małecki" <me@mmalecki.com>
To: util-linux@vger.kernel.org
Cc: "Maciej Małecki" <me@mmalecki.com>
Subject: [PATCH v2 2/3] libfdisk: remove `O_RDONLY` fallback mode when opening device
Date: Mon,  3 Mar 2014 22:14:06 +0100	[thread overview]
Message-ID: <1393881247-17092-2-git-send-email-me@mmalecki.com> (raw)
In-Reply-To: <1393881247-17092-1-git-send-email-me@mmalecki.com>

---
 libfdisk/src/context.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/libfdisk/src/context.c b/libfdisk/src/context.c
index dc9f0f9..795718c 100644
--- a/libfdisk/src/context.c
+++ b/libfdisk/src/context.c
@@ -241,10 +241,6 @@ static int warn_wipe(struct fdisk_context *cxt)
  * @fname: path to the device to be handled
  * @readonly: how to open the device
  *
- * If the @readonly flag is set to false, fdisk will attempt to open
- * the device with read-write mode and will fallback to read-only if
- * unsuccessful.
- *
  * Returns: 0 on success, < 0 on error.
  */
 int fdisk_context_assign_device(struct fdisk_context *cxt,
@@ -257,10 +253,8 @@ int fdisk_context_assign_device(struct fdisk_context *cxt,
 
 	reset_context(cxt);
 
-	if (readonly == 1 || (fd = open(fname, O_RDWR|O_CLOEXEC)) < 0) {
-		if ((fd = open(fname, O_RDONLY|O_CLOEXEC)) < 0)
-			return -errno;
-		readonly = 1;
+	if ((fd = open(fname, (readonly == 1 ? O_RDONLY : O_RDWR) | O_CLOEXEC)) < 0) {
+		goto fail;
 	}
 
 	cxt->dev_fd = fd;
-- 
1.9.0


  reply	other threads:[~2014-03-03 21:12 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-27  3:26 [PATCH 1/2] fdisk: warn if opening a device in write mode failed Maciej Małecki
2014-02-27  3:26 ` [PATCH 2/2] fdisk: do not allow writing to a read-only device Maciej Małecki
2014-02-28  2:32 ` [PATCH 1/2] fdisk: warn if opening a device in write mode failed Davidlohr Bueso
2014-02-28 11:00   ` Maciej Małecki
2014-02-28 16:23     ` Phillip Susi
2014-02-28 18:18       ` Maciej Małecki
2014-02-28 18:27       ` Davidlohr Bueso
2014-02-28 19:18         ` Phillip Susi
2014-03-03  9:04           ` Karel Zak
2014-03-03 21:19             ` Maciej Małecki
2014-03-03 21:47               ` Phillip Susi
2014-03-21 13:10       ` Karel Zak
2014-03-03 21:14 ` [PATCH v2 1/3] fdisk: do not allow writing to a read-only device Maciej Małecki
2014-03-03 21:14   ` Maciej Małecki [this message]
2014-03-03 21:14   ` [PATCH v2 3/3] fdisk: retry opening device in read-only mode Maciej Małecki

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