From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Julia Lawall <Julia.Lawall@lip6.fr>,
Michael Ellerman <mpe@ellerman.id.au>,
Sasha Levin <sashal@kernel.org>,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH AUTOSEL 4.4 03/12] powerpc/cell: add missing of_node_put
Date: Mon, 17 Jan 2022 12:07:47 -0500 [thread overview]
Message-ID: <20220117170757.1473318-3-sashal@kernel.org> (raw)
In-Reply-To: <20220117170757.1473318-1-sashal@kernel.org>
From: Julia Lawall <Julia.Lawall@lip6.fr>
[ Upstream commit a841fd009e51c8c0a8f07c942e9ab6bb48da8858 ]
for_each_node_by_name performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.
A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):
// <smpl>
@@
expression e,e1;
local idexpression n;
@@
for_each_node_by_name(n, e1) {
... when != of_node_put(n)
when != e = n
(
return n;
|
+ of_node_put(n);
? return ...;
)
...
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1448051604-25256-7-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/platforms/cell/iommu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 14a582b212745..4edceff5791ad 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -1107,6 +1107,7 @@ static int __init cell_iommu_fixed_mapping_init(void)
if (hbase < dbase || (hend > (dbase + dsize))) {
pr_debug("iommu: hash window doesn't fit in"
"real DMA window\n");
+ of_node_put(np);
return -1;
}
}
--
2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
Julia Lawall <Julia.Lawall@lip6.fr>,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH AUTOSEL 4.4 03/12] powerpc/cell: add missing of_node_put
Date: Mon, 17 Jan 2022 12:07:47 -0500 [thread overview]
Message-ID: <20220117170757.1473318-3-sashal@kernel.org> (raw)
In-Reply-To: <20220117170757.1473318-1-sashal@kernel.org>
From: Julia Lawall <Julia.Lawall@lip6.fr>
[ Upstream commit a841fd009e51c8c0a8f07c942e9ab6bb48da8858 ]
for_each_node_by_name performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.
A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):
// <smpl>
@@
expression e,e1;
local idexpression n;
@@
for_each_node_by_name(n, e1) {
... when != of_node_put(n)
when != e = n
(
return n;
|
+ of_node_put(n);
? return ...;
)
...
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1448051604-25256-7-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/platforms/cell/iommu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 14a582b212745..4edceff5791ad 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -1107,6 +1107,7 @@ static int __init cell_iommu_fixed_mapping_init(void)
if (hbase < dbase || (hend > (dbase + dsize))) {
pr_debug("iommu: hash window doesn't fit in"
"real DMA window\n");
+ of_node_put(np);
return -1;
}
}
--
2.34.1
next prev parent reply other threads:[~2022-01-17 17:12 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-17 17:07 [PATCH AUTOSEL 4.4 01/12] powerpc/6xx: add missing of_node_put Sasha Levin
2022-01-17 17:07 ` Sasha Levin
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 02/12] powerpc/powernv: " Sasha Levin
2022-01-17 17:07 ` Sasha Levin
2022-01-17 17:07 ` Sasha Levin [this message]
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 03/12] powerpc/cell: " Sasha Levin
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 04/12] powerpc/btext: " Sasha Levin
2022-01-17 17:07 ` Sasha Levin
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 05/12] i2c: i801: Don't silently correct invalid transfer size Sasha Levin
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 06/12] powerpc/smp: Move setup_profiling_timer() under CONFIG_PROFILING Sasha Levin
2022-01-17 17:07 ` Sasha Levin
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 07/12] i2c: mpc: Correct I2C reset procedure Sasha Levin
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 08/12] w1: Misuse of get_user()/put_user() reported by sparse Sasha Levin
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 09/12] ALSA: seq: Set upper limit of processed events Sasha Levin
2022-01-17 17:07 ` Sasha Levin
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 10/12] i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters Sasha Levin
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 11/12] MIPS: Octeon: Fix build errors using clang Sasha Levin
2022-01-17 17:07 ` [PATCH AUTOSEL 4.4 12/12] scsi: sr: Don't use GFP_DMA Sasha Levin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220117170757.1473318-3-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=Julia.Lawall@lip6.fr \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.