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| author | Xu Yang <xu.yang_2@nxp.com> | 2026-04-27 15:57:55 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-05-22 11:20:56 +0200 |
| commit | 8f6aa392653e52a45858cff5c063df550028836b (patch) | |
| tree | 24a884ba404545acff4cf722c6b8a76ad81aba5d /kernel/dma/debug.c | |
| parent | 2796646f6d892c1eb6818c7ca41fdfa12568e8d1 (diff) | |
usb: chipidea: core: convert ci_role_switch to local variable
When a system contains multiple USB controllers, the global ci_role_switch
variable may be overwritten by subsequent driver initialization code.
This can cause issues in the following cases:
- The 2nd ci_hdrc_probe() sees ci_role_switch.fwnode as non-NULL even
though the "usb-role-switch" property is not present for the controller.
- When the ci_hdrc device is unbound and bound again, ci_role_switch
fwnode will not be reassigned, and the old value will be used instead.
Convert ci_role_switch to a local variable to fix these issues.
Fixes: 05559f10ed79 ("usb: chipidea: add role switch class support")
Cc: stable <stable@kernel.org>
Acked-by: Peter Chen <peter.chen@kernel.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://patch.msgid.link/20260427075755.3611217-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/dma/debug.c')
0 files changed, 0 insertions, 0 deletions
