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| author | Luo Jiaxing <luojiaxing@huawei.com> | 2020-11-27 16:50:02 +0800 |
|---|---|---|
| committer | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2020-12-02 10:40:54 +0100 |
| commit | 60593df667e087b009ee0fc20d92e9c4c096a9b5 (patch) | |
| tree | a1b4ba5bc78c49431c24331be686c461116c9394 /net/caif/cfserl.c | |
| parent | 0ac22098de6f9fd460ac1b1cbf6dbd324312161c (diff) | |
gpio: dwapb: fix NULL pointer dereference at dwapb_gpio_suspend()
Following Calltrace is found when running echo freeze > /sys/power/state.
[ 272.755506] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010
[ 272.755585] Call trace:
[ 272.755587] dwapb_gpio_suspend+0x18/0x318
[ 272.755588] pm_generic_suspend+0x2c/0x48
[ 272.755595] acpi_subsys_suspend+0x60/0x70
[ 272.755599] dpm_run_callback.isra.18+0x40/0xe0
[ 272.755601] __device_suspend+0xf4/0x360
The reason is platform_set_drvdata() is deleted, and dwapb_gpio_suspend()
get *gpio by dev_get_drvdata().
Fixes: feeaefd378ca ("gpio: dwapb: Use resource managed GPIO-chip add data method")
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'net/caif/cfserl.c')
0 files changed, 0 insertions, 0 deletions