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24ba441d2b
Since commit1f2bcb8c8c("gpio: protect the descriptor label with SRCU"), desc_set_label() already allocates memory for the label, so there is no need to allocate it again. If we do, we leak it. unreferenced object 0xffff0000c3e4d0c0 (size 32): comm "kworker/u16:4", pid 60, jiffies 4294894555 hex dump (first 32 bytes): 72 65 67 75 6c 61 74 6f 72 2d 63 61 6e 32 2d 73 regulator-can2-s 74 62 79 00 00 00 ff ff ff ff ff ff eb db ff ff tby............. backtrace (crc 2c3a0350): [<00000000e93c5cf4>] kmemleak_alloc+0x34/0x40 [<0000000097a2657f>] __kmalloc_node_track_caller+0x2c4/0x524 [<000000000dd1c057>] kstrdup+0x4c/0x98 [<00000000b513a96a>] kstrdup_const+0x34/0x40 [<000000008a7f0feb>] gpiod_request_commit+0xdc/0x358 [<00000000fc71ad64>] gpiod_request+0xd8/0x204 [<00000000fa24b091>] gpiod_find_and_request+0x170/0x780 [<0000000086ecf92d>] gpiod_get_index+0x70/0xe0 [<000000004aef97f9>] gpiod_get_optional+0x18/0x30 [<00000000312f1b25>] reg_fixed_voltage_probe+0x58c/0xad8 [<00000000e6f47635>] platform_probe+0xc4/0x198 [<00000000cf78fbdb>] really_probe+0x204/0x5a8 [<00000000e28d05ec>] __driver_probe_device+0x158/0x2c4 [<00000000e4fe452b>] driver_probe_device+0x60/0x18c [<00000000479fcf5d>] __device_attach_driver+0x168/0x208 [<000000007d389f38>] bus_for_each_drv+0x104/0x190 Fixes:1f2bcb8c8c("gpio: protect the descriptor label with SRCU") Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com> [Bartosz: tweaked the commit message] Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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