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(parent: 137b2d9) | 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)
commitb9491b2e45d71eb64245560e208897af95ffbf95
tree74612e3234d18417bbde3da04667168c52810204tree | snapshot
parent137b2d985928890557f8e73cf7e53677637b7af8commit | 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: 197eb5c416ff ("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
Domain: System / Kernel;