diff options
| author | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2023-07-19 09:16:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-11 13:08:19 +0300 |
| commit | bc41119995e41ca19a06ea464a2d2cab875ac2ad (patch) | |
| tree | c8fd097a0d6625f07069ce23b02e4556a52f6379 /drivers/firmware | |
| parent | a062da58ed97d1f16a564619726e77ba528c5191 (diff) | |
| download | linux-bc41119995e41ca19a06ea464a2d2cab875ac2ad.tar.xz | |
firmware: arm_scmi: Drop OF node reference in the transport channel setup
commit da042eb4f061a0b54aedadcaa15391490c48e1ad upstream.
The OF node reference obtained from of_parse_phandle() should be dropped
if node is not compatible with arm,scmi-shmem.
Fixes: 507cd4d2c5eb ("firmware: arm_scmi: Add compatibility checks for shmem node")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20230719061652.8850-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/arm_scmi/mailbox.c | 4 | ||||
| -rw-r--r-- | drivers/firmware/arm_scmi/smc.c | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/firmware/arm_scmi/mailbox.c b/drivers/firmware/arm_scmi/mailbox.c index a455f3c0e98b..25d31dfdad15 100644 --- a/drivers/firmware/arm_scmi/mailbox.c +++ b/drivers/firmware/arm_scmi/mailbox.c @@ -106,8 +106,10 @@ static int mailbox_chan_setup(struct scmi_chan_info *cinfo, struct device *dev, return -ENOMEM; shmem = of_parse_phandle(cdev->of_node, "shmem", idx); - if (!of_device_is_compatible(shmem, "arm,scmi-shmem")) + if (!of_device_is_compatible(shmem, "arm,scmi-shmem")) { + of_node_put(shmem); return -ENXIO; + } ret = of_address_to_resource(shmem, 0, &res); of_node_put(shmem); diff --git a/drivers/firmware/arm_scmi/smc.c b/drivers/firmware/arm_scmi/smc.c index dc383d874ee3..ac0bd51ef16a 100644 --- a/drivers/firmware/arm_scmi/smc.c +++ b/drivers/firmware/arm_scmi/smc.c @@ -118,8 +118,10 @@ static int smc_chan_setup(struct scmi_chan_info *cinfo, struct device *dev, return -ENOMEM; np = of_parse_phandle(cdev->of_node, "shmem", 0); - if (!of_device_is_compatible(np, "arm,scmi-shmem")) + if (!of_device_is_compatible(np, "arm,scmi-shmem")) { + of_node_put(np); return -ENXIO; + } ret = of_address_to_resource(np, 0, &res); of_node_put(np); |