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(parent: 5740ead) | patch
serial: 8250_dw: Take port lock while accessing LSR
authorIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tue, 28 Jun 2022 09:01:28 +0000 (12:01 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 30 Jun 2022 15:09:59 +0000 (17:09 +0200)
commit95c1bb8485b7d981d6359842ddfaedc7b540d005
tree74612e3234d18417bbde3da04667168c52810204tree | snapshot
parent5740eadecc9e3adf0024040526ff5ef713b43b81commit | diff
serial: 8250_dw: Take port lock while accessing LSR

Accessing LSR requires port lock because it mutates lsr_saved_flags
in serial_lsr_in().

Fixes: 7895b0005f82 ("serial: 8250_dw: Use serial_lsr_in() in dw8250_handle_irq()")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/c5879db7-bee9-93f-526e-872a292442@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/8250/8250_dw.c diff | blob | history
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