This is a note to let you know that I've just added the patch titled
mtd: rawnand: diskonchip: Fix the probe error path
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mtd-rawnand-diskonchip-fix-the-probe-error-path.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Fri Apr 9 11:45:07 AM CEST 2021
From: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Date: Tue, 19 May 2020 14:59:45 +0200
Subject: mtd: rawnand: diskonchip: Fix the probe error path
From: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
commit c5be12e45940f1aa1b5dfa04db5d15ad24f7c896 upstream
Not sure nand_cleanup() is the right function to call here but in any
case it is not nand_release(). Indeed, even a comment says that
calling nand_release() is a bit of a hack as there is no MTD device to
unregister. So switch to nand_cleanup() for now and drop this
comment.
There is no Fixes tag applying here as the use of nand_release()
in this driver predates by far the introduction of nand_cleanup() in
commit d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
which makes this change possible. However, pointing this commit as the
culprit for backporting purposes makes sense even if it did not intruce
any bug.
Fixes: d44154f969a4 ("mtd: nand: Provide nand_cleanup() function to free NAND related resources")
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/linux-mtd/20200519130035.1883-13-miquel.raynal@xxxxxxxxxxx
[sudip: manual backport to old file]
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mtd/nand/diskonchip.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -1608,13 +1608,10 @@ static int __init doc_probe(unsigned lon
numchips = doc2001_init(mtd);
if ((ret = nand_scan(mtd, numchips)) || (ret = doc->late_init(mtd))) {
- /* DBB note: i believe nand_release is necessary here, as
+ /* DBB note: i believe nand_cleanup is necessary here, as
buffers may have been allocated in nand_base. Check with
Thomas. FIX ME! */
- /* nand_release will call mtd_device_unregister, but we
- haven't yet added it. This is handled without incident by
- mtd_device_unregister, as far as I can tell. */
- nand_release(mtd);
+ nand_cleanup(nand);
kfree(mtd);
goto fail;
}
Patches currently in stable-queue which might be from miquel.raynal@xxxxxxxxxxx are
queue-4.4/mtd-rawnand-diskonchip-fix-the-probe-error-path.patch
queue-4.4/mtd-rawnand-orion-fix-the-probe-error-path.patch
queue-4.4/mtd-rawnand-plat_nand-fix-the-probe-error-path.patch
queue-4.4/mtd-rawnand-socrates-fix-the-probe-error-path.patch
queue-4.4/mtd-rawnand-tmio-fix-the-probe-error-path.patch
queue-4.4/mtd-rawnand-pasemi-fix-the-probe-error-path.patch
queue-4.4/mtd-rawnand-sharpsl-fix-the-probe-error-path.patch
