Wang Jun a0fe29d20e soc: fsl: qe: panic on ioremap() failure in qe_reset() ...

When ioremap() fails in qe_reset(), the global pointer qe_immr remains
NULL, leading to a subsequent NULL pointer dereference when the pointer
is accessed. Since this happens early in the boot process, a failure to
map a few bytes of I/O memory indicates a fatal error from which the
system cannot recover.

Follow the same pattern as qe_sdma_init() and panic immediately when
ioremap() fails. This avoids a silent NULL pointer dereference later
and makes the error explicit.

Fixes: 9865853851 ("[POWERPC] Add QUICC Engine (QE) infrastructure")
Cc: stable@vger.kernel.org
Signed-off-by: Wang Jun <1742789905@qq.com>
Link: https://lore.kernel.org/r/tencent_FED49CF5331CC0C7910618883332A08E2606@qq.com
[chleroy: Rearranged change to reduce churn]
Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>

2026-04-04 18:52:09 +02:00

..

gpio.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

Kconfig

soc: fsl: cpm1: qmc: Fix dependency on fsl_soc.h

2024-09-04 09:30:53 +00:00

Makefile

soc: fsl: qe: Add an interrupt controller for QUICC Engine Ports

2026-01-10 10:52:45 +01:00

qe_common.c

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21 01:02:28 -08:00

qe_ic.c

soc: Use dev_fwnode()

2025-07-08 10:29:28 +02:00

qe_io.c

soc: fsl: qe: Check of ioremap return value

2022-02-18 17:11:23 -06:00

qe_ports_ic.c

soc: fsl: qe_ports_ic: switch to irq_domain_create_linear()

2026-03-25 11:24:07 +01:00

qe_tdm.c

soc: fsl: Explicitly include correct DT includes

2023-08-12 10:31:02 +02:00

qe.c

soc: fsl: qe: panic on ioremap() failure in qe_reset()

2026-04-04 18:52:09 +02:00

qmc.c

soc: fsl: cpm1: qmc: Fix error check for devm_ioremap_resource() in qmc_qe_init_resources()

2026-02-23 14:49:27 +01:00

tsa.c

Merge tag 'soc_fsl-6.13-1' of https://github.com/chleroy/linux into soc/drivers

2024-11-15 15:19:47 +01:00

tsa.h

soc: fsl: cpm1: tsa: Introduce tsa_serial_get_num()

2024-09-03 07:49:19 +02:00

ucc_fast.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

ucc_slow.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

ucc.c

soc: fsl: qe: ucc: Export ucc_mux_set_grant_tsa_bkpt

2024-09-05 14:12:15 +00:00

usb.c

soc: fsl: qe: avoid ppc-specific io accessors

2019-12-09 13:54:29 -06:00