usb: ehci-spear: fix call balance of sehci clk handling routines

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commit 40c9748267 upstream.

If the clock sehci->clk was not enabled in spear_ehci_hcd_drv_probe,
it should not be disabled in any path.

Conversely, if it was enabled in spear_ehci_hcd_drv_probe, it must be disabled
in all error paths to ensure proper cleanup.

Found by Linux Verification Center (linuxtesting.org) with Klever.

Fixes: 7675d6ba43 ("USB: EHCI: make ehci-spear a separate driver")
Cc: stable@vger.kernel.org
Signed-off-by: Vitalii Mordan <mordan@ispras.ru>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20241114230310.432213-1-mordan@ispras.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Vitalii Mordan 2024-11-15 02:03:10 +03:00 • committed by Greg Kroah-Hartman

parent ab011f7439

commit 3504696ecf

1 changed files with 4 additions and 3 deletions

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drivers/usb/host/ehci-spear.c

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