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| author | Simon Guinot <simon.guinot@sequanux.org> | 2014-12-02 07:32:10 -0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@gmail.com> | 2015-01-13 13:49:01 -0800 |
| commit | 0c86ac2c50647451d6a70dc900f8bb0ee3d485d9 (patch) | |
| tree | 56dd9c7f8ed93c5095a0a6a27a1d06b69a6c01a3 /fs | |
| parent | eaa27f34e91a14cdceed26ed6c6793ec1d186115 (diff) | |
| download | op-kernel-dev-0c86ac2c50647451d6a70dc900f8bb0ee3d485d9.zip op-kernel-dev-0c86ac2c50647451d6a70dc900f8bb0ee3d485d9.tar.gz | |
leds: netxbig: fix oops at probe time
This patch fixes a NULL pointer dereference on led_dat->mode_val. Due to
this bug, a kernel oops can be observed at probe time on the LaCie 2Big
and 5Big v2 boards:
Unable to handle kernel NULL pointer dereference at virtual address 00000008
[...]
[<c03f244c>] (netxbig_led_probe) from [<c02c8c6c>] (platform_drv_probe+0x4c/0x9c)
[<c02c8c6c>] (platform_drv_probe) from [<c02c72d0>] (driver_probe_device+0x98/0x25c)
[<c02c72d0>] (driver_probe_device) from [<c02c7520>] (__driver_attach+0x8c/0x90)
[<c02c7520>] (__driver_attach) from [<c02c5c24>] (bus_for_each_dev+0x68/0x94)
[<c02c5c24>] (bus_for_each_dev) from [<c02c6408>] (bus_add_driver+0x124/0x1dc)
[<c02c6408>] (bus_add_driver) from [<c02c7ac0>] (driver_register+0x78/0xf8)
[<c02c7ac0>] (driver_register) from [<c000888c>] (do_one_initcall+0x80/0x1cc)
[<c000888c>] (do_one_initcall) from [<c0733618>] (kernel_init_freeable+0xe4/0x1b4)
[<c0733618>] (kernel_init_freeable) from [<c058db9c>] (kernel_init+0xc/0xec)
[<c058db9c>] (kernel_init) from [<c0009850>] (ret_from_fork+0x14/0x24)
[...]
This bug was introduced by commit 588a6a99286ae30afb1339d8bc2163517b1b7dd1
("leds: netxbig: fix attribute-creation race").
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Cc: <stable@vger.kernel.org> # 3.17+
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions
