usb: chipidea: ci_hdrc_imx: decrement device's refcount in .remove() and in the error path of .probe()

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[ Upstream commit 74adad5003 ]

Current implementation of ci_hdrc_imx_driver does not decrement the
refcount of the device obtained in usbmisc_get_init_data(). Add a
put_device() call in .remove() and in .probe() before returning an
error.

This bug was found by an experimental static analysis tool that I am
developing.

Cc: stable <stable@kernel.org>
Fixes: f40017e0f3 ("chipidea: usbmisc_imx: Add USB support for VF610 SoCs")
Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20241216015539.352579-1-joe@pf.is.s.u-tokyo.ac.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Joe Hattori 2024-12-16 10:55:39 +09:00 • committed by Greg Kroah-Hartman

parent 998b1fa6c2

commit 3f46fefab9

1 changed files with 17 additions and 8 deletions

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drivers/usb/chipidea/ci_hdrc_imx.c

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