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Yang Yingliang reported a memleak:
===
I got memory leak as follows when doing fault injection test:
unreferenced object 0xffff888014aec078 (size 8):
comm "xrun", pid 356, jiffies 4294910619 (age 16.332s)
hex dump (first 8 bytes):
31 2d 30 30 31 63 00 00 1-001c..
backtrace:
[<00000000eb56c0a9>] __kmalloc_track_caller+0x1a6/0x300
[<000000000b220ea3>] kvasprintf+0xad/0x140
[<00000000b83203e5>] kvasprintf_const+0x62/0x190
[<000000002a5eab37>] kobject_set_name_vargs+0x56/0x140
[<00000000300ac279>] dev_set_name+0xb0/0xe0
[<00000000b66ebd6f>] i2c_new_client_device+0x7e4/0x9a0
If device_register() returns error in i2c_new_client_device(),
the name allocated by i2c_dev_set_name() need be freed. As
comment of device_register() says, it should use put_device()
to give up the reference in the error path.
===
I think this solution is less intrusive and more robust than he
originally proposed solutions, though.
Reported-by: Yang Yingliang <yangyingliang@huawei.com>
Closes: http://patchwork.ozlabs.org/project/linux-i2c/patch/20221124085448.3620240-1-yangyingliang@huawei.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
6af79f7fe7