+ drivers-mmc-host-use-err_cast.patch added to -mm tree

[akpm@linux-foundation.org]

The patch titled
     drivers/mmc/host: use ERR_CAST
has been added to the -mm tree.  Its filename is
     drivers-mmc-host-use-err_cast.patch

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*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: drivers/mmc/host: use ERR_CAST
From: Julia Lawall <julia@diku.dk>

Use ERR_CAST(x) rather than ERR_PTR(PTR_ERR(x)).  The former makes more
clear what is the purpose of the operation, which otherwise looks like a
no-op.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
T x;
identifier f;
@@

T f (...) { <+...
- ERR_PTR(PTR_ERR(x))
+ x
 ...+> }

@@
expression x;
@@

- ERR_PTR(PTR_ERR(x))
+ ERR_CAST(x)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/mmc/host/sdhci-pci.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/mmc/host/sdhci-pci.c~drivers-mmc-host-use-err_cast drivers/mmc/host/sdhci-pci.c
--- a/drivers/mmc/host/sdhci-pci.c~drivers-mmc-host-use-err_cast
+++ a/drivers/mmc/host/sdhci-pci.c
@@ -628,7 +628,7 @@ static struct sdhci_pci_slot * __devinit
 	host = sdhci_alloc_host(&pdev->dev, sizeof(struct sdhci_pci_slot));
 	if (IS_ERR(host)) {
 		dev_err(&pdev->dev, "cannot allocate host\n");
-		return ERR_PTR(PTR_ERR(host));
+		return ERR_CAST(host);
 	}
 
 	slot = sdhci_priv(host);
_

Patches currently in -mm which might be from julia@diku.dk are

origin.patch
linux-next.patch
drivers-scsi-aacraid-eliminate-use-after-free.patch
arch-x86-pci-use-kasprintf.patch
fs-btrfs-use-memdup_user.patch
drivers-media-use-memdup_user.patch
drivers-i2c-use-memdup_user.patch
drivers-ieee1394-use-memdup_user.patch
drivers-infiniband-core-use-memdup_user.patch
drivers-ide-use-memdup_user.patch
drivers-isdn-use-memdup_user.patch
net-can-use-memdup_user.patch
net-dccp-use-memdup_user.patch
drivers-net-use-memdup_user.patch
drivers-net-cxgb3-use-memdup_user.patch
drivers-net-wan-use-memdup_user.patch
drivers-net-wireless-prism54-use-memdup_user.patch
drivers-s390-net-use-memdup_user.patch
drivers-scsi-libsas-use-sam_good.patch
drivers-scsi-remove-unnecessary-null-test.patch
drivers-message-move-dereference-after-null-test.patch
drivers-scsi-correct-the-size-argument-to-kmalloc.patch
drivers-scsi-use-memdup_user.patch
drivers-block-use-memdup_user.patch
drivers-staging-dream-camera-use-memdup_user.patch
drivers-usb-gadget-use-memdup_user.patch
mm-use-memdup_user.patch
drivers-char-vtc-use-memdup_user.patch
drivers-message-i2o-i2o_configc-use-memdup_user.patch
fs-autofs4-use-memdup_user.patch
drivers-video-via-use-memdup_user.patch
drivers-telephony-ixjc-use-memdup_user.patch
drivers-char-ppdevc-use-kasprintf.patch
drivers-char-applicomc-use-memdup_user.patch
ipc-semc-use-err_cast.patch
crypto-use-err_cast.patch
drivers-mmc-host-use-err_cast.patch
fs-ubifs-use-err_cast.patch
fs-btrfs-use-err_cast.patch
mm-use-err_cast.patch
fs-ceph-use-err_cast.patch
fs-affs-use-err_cast.patch