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| author | Lucas De Marchi <lucas.demarchi@intel.com> | 2025-06-27 14:47:47 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-07 11:04:46 +0200 |
| commit | 2b7eec2ec3015f52fc74cf45d0408925e984ecd1 (patch) | |
| tree | f840bfebb2c4f142c5724ce75654eef7b3158c14 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 0c43c19bf7a6cf2883b4a7ff08171be4af8ef814 (diff) | |
usb: early: xhci-dbc: Fix early_ioremap leak
Using the kernel param earlyprintk=xdbc,keep without proper hardware
setup leads to this:
[ ] xhci_dbc:early_xdbc_parse_parameter: dbgp_num: 0
...
[ ] xhci_dbc:early_xdbc_setup_hardware: failed to setup the connection to host
...
[ ] calling kmemleak_late_init+0x0/0xa0 @ 1
[ ] kmemleak: Kernel memory leak detector initialized (mem pool available: 14919)
[ ] kmemleak: Automatic memory scanning thread started
[ ] initcall kmemleak_late_init+0x0/0xa0 returned 0 after 417 usecs
[ ] calling check_early_ioremap_leak+0x0/0x70 @ 1
[ ] ------------[ cut here ]------------
[ ] Debug warning: early ioremap leak of 1 areas detected.
please boot with early_ioremap_debug and report the dmesg.
[ ] WARNING: CPU: 11 PID: 1 at mm/early_ioremap.c:90 check_early_ioremap_leak+0x4e/0x70
When early_xdbc_setup_hardware() fails, make sure to call
early_iounmap() since xdbc_init() won't handle it.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Fixes: aeb9dd1de98c ("usb/early: Add driver for xhci debug capability")
Link: https://lore.kernel.org/r/20250627-xdbc-v1-1-43cc8c317b1b@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions