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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit One more try using .mailmap. On 11. 11. 26, 10:21, Jiri Slaby wrote: > On 10. 11. 26, 11:54, Gu Bin wrote: >> In imx_uart_poll_init(), when clk_prepare_enable(sport->clk_per) fails >> the error branch only disables the previously enabled clk_ipg and then >> falls through: the function keeps programming the UART >> (imx_uart_setup_ufcr >> and the register writes below) with both clocks disabled and eventually >> returns 0, reporting success for a port that never came up. >> >> The sibling imx_uart_startup() handles the same situation by returning >> the error after the rollback. >> >> Return the error after rolling back clk_ipg, matching >> imx_uart_startup(). >> >> Fixes: 6b8bdad96164 ("serial: imx: add imx_poll_init()") >> Signed-off-by: Gu Bin > > I am not sure this is correct at all. > > Ccin the author of the code would've helped. Done now. > >> --- >>   drivers/tty/serial/imx.c | 4 +++- >>   1 file changed, 3 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c >> index 0831bd5ee3dc..2a931361d17c 100644 >> --- a/drivers/tty/serial/imx.c >> +++ b/drivers/tty/serial/imx.c >> @@ -1954,8 +1954,10 @@ static int imx_uart_poll_init(struct uart_port >> *port) >>       if (retval) >>           return retval; >>       retval = clk_prepare_enable(sport->clk_per); >> -    if (retval) >> +    if (retval) { >>           clk_disable_unprepare(sport->clk_ipg); >> +        return retval; >> +    } >>       imx_uart_setup_ufcr(sport, TXTL_DEFAULT, sport->rxtl); > > -- js suse labs