On Wed, Oct 21, 2015 at 03:44:04PM +0200, Ludovic Desroches wrote: > In some cases, we could start a new i2c transfer with the RXRDY flag > set. It is not a clean state and it leads to print annoying error > messages even if there no real issue. The cause is only having garbage > data in the Receive Holding Register because of a weird behavior of the > RXRDY flag. > > Signed-off-by: Ludovic Desroches <ludovic.desroches@xxxxxxxxx> > Fixes: 93563a6a71bb ("i2c: at91: fix a race condition when using the DMA > controller") > Reported-by: Peter Rosin <peda@xxxxxxxxxxxxxx> > Tested-by: Peter Rosin <peda@xxxxxxxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx #4.1 SMATCH drivers/i2c/busses/i2c-at91.c:602 at91_do_twi_transfer warn: unused return: sr = at91_twi_read() drivers/i2c/busses/i2c-at91.c: In function 'at91_do_twi_transfer': drivers/i2c/busses/i2c-at91.c:550:11: warning: variable 'sr' set but not used [-Wunused-but-set-variable] unsigned sr; ^
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