forked from luck/tmp_suning_uos_patched
05026c4e94
commit 84cc69589700b90a4c8d27b481a51fce8cca6051 upstream.
When using the tpm_tis-spi driver on a system missing the physical TPM,
a null pointer exception was observed.
[ 0.938677] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[ 0.939020] pgd = 10c753cb
[ 0.939237] [00000004] *pgd=00000000
[ 0.939808] Internal error: Oops: 5 [#1] SMP ARM
[ 0.940157] CPU: 0 PID: 48 Comm: kworker/u4:1 Not tainted 5.15.10-dd1e40c #1
[ 0.940364] Hardware name: Generic DT based system
[ 0.940601] Workqueue: events_unbound async_run_entry_fn
[ 0.941048] PC is at tpm_tis_remove+0x28/0xb4
[ 0.941196] LR is at tpm_tis_core_init+0x170/0x6ac
This is due to an attempt in 'tpm_tis_remove' to use the drvdata, which
was not initialized in 'tpm_tis_core_init' prior to the first error.
Move the initialization of drvdata earlier so 'tpm_tis_remove' has
access to it.
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Fixes: 79ca6f74dae0 ("tpm: fix Atmel TPM crash caused by too frequent queries")
Cc: stable@vger.kernel.org
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|---|---|---|
| .. | ||
| agp | ||
| hw_random | ||
| ipmi | ||
| mwave | ||
| pcmcia | ||
| tpm | ||
| xilinx_hwicap | ||
| xillybus | ||
| adi.c | ||
| apm-emulation.c | ||
| applicom.c | ||
| applicom.h | ||
| bsr.c | ||
| ds1620.c | ||
| dsp56k.c | ||
| dtlk.c | ||
| hangcheck-timer.c | ||
| hpet.c | ||
| Kconfig | ||
| lp.c | ||
| Makefile | ||
| mem.c | ||
| misc.c | ||
| mspec.c | ||
| nsc_gpio.c | ||
| nvram.c | ||
| nwbutton.c | ||
| nwbutton.h | ||
| nwflash.c | ||
| pc8736x_gpio.c | ||
| powernv-op-panel.c | ||
| ppdev.c | ||
| ps3flash.c | ||
| random.c | ||
| raw.c | ||
| scx200_gpio.c | ||
| sonypi.c | ||
| tb0219.c | ||
| tlclk.c | ||
| toshiba.c | ||
| ttyprintk.c | ||
| uv_mmtimer.c | ||
| virtio_console.c | ||