From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Yu Kuai <yukuai3@huawei.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Joerg Roedel <jroedel@suse.de>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.9 14/54] iommu/exynos: add missing put_device() call in exynos_iommu_of_xlate()
Date: Mon, 12 Oct 2020 15:26:36 +0200 [thread overview]
Message-ID: <20201012132630.252717421@linuxfoundation.org> (raw)
In-Reply-To: <20201012132629.585664421@linuxfoundation.org>
From: Yu Kuai <yukuai3@huawei.com>
[ Upstream commit 1a26044954a6d1f4d375d5e62392446af663be7a ]
if of_find_device_by_node() succeed, exynos_iommu_of_xlate() doesn't have
a corresponding put_device(). Thus add put_device() to fix the exception
handling for this function implementation.
Fixes: aa759fd376fb ("iommu/exynos: Add callback for initializing devices from device tree")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20200918011335.909141-1-yukuai3@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/exynos-iommu.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index beef59eb94fa7..626b434e7967a 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1265,13 +1265,17 @@ static int exynos_iommu_of_xlate(struct device *dev,
return -ENODEV;
data = platform_get_drvdata(sysmmu);
- if (!data)
+ if (!data) {
+ put_device(&sysmmu->dev);
return -ENODEV;
+ }
if (!owner) {
owner = kzalloc(sizeof(*owner), GFP_KERNEL);
- if (!owner)
+ if (!owner) {
+ put_device(&sysmmu->dev);
return -ENOMEM;
+ }
INIT_LIST_HEAD(&owner->controllers);
dev->archdata.iommu = owner;
--
2.25.1
next prev parent reply other threads:[~2020-10-12 14:08 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-12 13:26 [PATCH 4.9 00/54] 4.9.239-rc1 review Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 01/54] vsock/virtio: use RCU to avoid use-after-free on the_virtio_vsock Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 02/54] vsock/virtio: stop workers during the .remove() Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 03/54] USB: gadget: f_ncm: Fix NDP16 datagram validation Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 04/54] gpio: tc35894: fix up tc35894 interrupt configuration Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 05/54] Input: i8042 - add nopnp quirk for Acer Aspire 5 A515 Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 06/54] drm/amdgpu: restore proper ref count in amdgpu_display_crtc_set_config Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 07/54] net: dec: de2104x: Increase receive ring size for Tulip Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 08/54] rndis_host: increase sleep time in the query-response loop Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 09/54] drivers/net/wan/lapbether: Make skb->protocol consistent with the header Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 10/54] drivers/net/wan/hdlc: Set skb->protocol before transmitting Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 11/54] mac80211: do not allow bigger VHT MPDUs than the hardware supports Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 12/54] nfs: Fix security label length not being reset Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 13/54] clk: samsung: exynos4: mark chipid clock as CLK_IGNORE_UNUSED Greg Kroah-Hartman
2020-10-12 13:26 ` Greg Kroah-Hartman [this message]
2020-10-12 13:26 ` [PATCH 4.9 15/54] i2c: cpm: Fix i2c_ram structure Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 16/54] random32: Restore __latent_entropy attribute on net_rand_state Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 17/54] net/packet: fix overflow in tpacket_rcv Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 18/54] epoll: do not insert into poll queues until all sanity checks are done Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 19/54] epoll: replace ->visited/visited_list with generation count Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 20/54] epoll: EPOLL_CTL_ADD: close the race in decision to take fast path Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 21/54] ep_create_wakeup_source(): dentry name can change under you Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 22/54] netfilter: ctnetlink: add a range check for l3/l4 protonum Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 23/54] fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 24/54] Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 25/54] Revert "ravb: Fixed to be able to unload modules" Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 26/54] fbcon: Fix global-out-of-bounds read in fbcon_get_font() Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 27/54] net: wireless: nl80211: fix out-of-bounds access in nl80211_del_key() Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 28/54] usermodehelper: reset umask to default before executing user process Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 29/54] platform/x86: thinkpad_acpi: initialize tp_nvram_state variable Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 30/54] platform/x86: thinkpad_acpi: re-initialize ACPI buffer size when reuse Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 31/54] driver core: Fix probe_count imbalance in really_probe() Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 32/54] perf top: Fix stdio interface input handling with glibc 2.28+ Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 33/54] mtd: rawnand: sunxi: Fix the probe error path Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 34/54] ftrace: Move RCU is watching check after recursion check Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 35/54] macsec: avoid use-after-free in macsec_handle_frame() Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 36/54] mm/khugepaged: fix filemap page_to_pgoff(page) != offset Greg Kroah-Hartman
2020-10-12 13:26 ` [PATCH 4.9 37/54] sctp: fix sctp_auth_init_hmacs() error path Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 38/54] team: set dev->needed_headroom in team_setup_by_port() Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 39/54] net: team: fix memory leak in __team_options_register Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 40/54] openvswitch: handle DNAT tuple collision Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 41/54] drm/amdgpu: prevent double kfree ttm->sg Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 42/54] xfrm: clone XFRMA_REPLAY_ESN_VAL in xfrm_do_migrate Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 43/54] xfrm: clone whole liftime_cur structure " Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 44/54] net: stmmac: removed enabling eee in EEE set callback Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 45/54] xfrm: Use correct address family in xfrm_state_find Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 46/54] bonding: set dev->needed_headroom in bond_setup_by_slave() Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 47/54] mdio: fix mdio-thunder.c dependency & build error Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 48/54] rxrpc: Fix rxkad token xdr encoding Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 49/54] rxrpc: Downgrade the BUG() for unsupported token type in rxrpc_read() Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 50/54] rxrpc: Fix some missing _bh annotations on locking conn->state_lock Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 51/54] rxrpc: Fix server keyring leak Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 52/54] perf: Fix task_function_call() error handling Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 53/54] mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged Greg Kroah-Hartman
2020-10-12 13:27 ` [PATCH 4.9 54/54] net: usb: rtl8150: set random MAC address when set_ethernet_addr() fails Greg Kroah-Hartman
2020-10-13 6:34 ` [PATCH 4.9 00/54] 4.9.239-rc1 review Naresh Kamboju
2020-10-13 16:39 ` Guenter Roeck
2020-10-14 1:39 ` Shuah Khan
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