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It is possible that 'data' passed to kfree() is set to a error value
instead of allocated space. Make sure it doesn't get called with invalid
pointer.
Fixes: 5a6338cce9f4 ("mailbox: arm_mhuv2: Add driver")
Cc: v5.11 <stable@vger.kernel.org> # v5.11
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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My build tests failed to catch that amba driver that would have needed
adaption in commit 3fd269e74f2f ("amba: Make the remove callback return
void"). Change the remove function to make the driver build again.
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 3fd269e74f2f ("amba: Make the remove callback return void")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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This patch fixes a bunch of sparse warnings in the newly added arm_mhuv2
driver.
drivers/mailbox/arm_mhuv2.c:506:24: warning: incorrect type in argument 1 (different address spaces)
drivers/mailbox/arm_mhuv2.c:506:24: expected void const volatile [noderef] __iomem *addr
drivers/mailbox/arm_mhuv2.c:506:24: got unsigned int [usertype] *
drivers/mailbox/arm_mhuv2.c:547:42: warning: incorrect type in argument 2 (different address spaces)
drivers/mailbox/arm_mhuv2.c:547:42: expected unsigned int [usertype] *reg
drivers/mailbox/arm_mhuv2.c:547:42: got unsigned int [noderef] __iomem *
drivers/mailbox/arm_mhuv2.c:625:42: warning: incorrect type in argument 2 (different address spaces)
drivers/mailbox/arm_mhuv2.c:625:42: expected unsigned int [usertype] *reg
drivers/mailbox/arm_mhuv2.c:625:42: got unsigned int [noderef] __iomem *
drivers/mailbox/arm_mhuv2.c:972:24: warning: dereference of noderef expression
drivers/mailbox/arm_mhuv2.c:973:22: warning: dereference of noderef expression
drivers/mailbox/arm_mhuv2.c:993:25: warning: dereference of noderef expression
drivers/mailbox/arm_mhuv2.c:1026:24: warning: dereference of noderef expression
drivers/mailbox/arm_mhuv2.c:1027:22: warning: dereference of noderef expression
drivers/mailbox/arm_mhuv2.c:1048:17: warning: dereference of noderef expression
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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This adds driver for the ARM MHUv2 (Message Handling Unit) mailbox
controller.
This is based on the accepted DT bindings of the controller and supports
combination of both transport protocols, i.e. doorbell and data-transfer.
Transmitting and receiving data through the mailbox framework is done
through struct arm_mhuv2_mbox_msg.
Based on the initial work done by Morten Borup Petersen from ARM.
Co-developed-by: Tushar Khandelwal <tushar.khandelwal@arm.com>
Signed-off-by: Tushar Khandelwal <tushar.khandelwal@arm.com>
Tested-by: Usama Arif <usama.arif@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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