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(parent: 7d056f1) | patch
8250_core: Fix unwanted TX chars write
authorLoic Poulain <loic.poulain@intel.com>
Thu, 24 Apr 2014 09:38:56 +0000 (11:38 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 7 Jun 2014 17:28:08 +0000 (10:28 -0700)
commit6b8279034082d4b6a066041ab5889ff711227160
tree396eefe4d2ce191a23f344d0a93848d80a110fa4tree | snapshot
parent7d056f1066bd1d677273e3db285e00f0fd80674dcommit | diff
8250_core: Fix unwanted TX chars write

commit b08c9c317e3f7764a91d522cd031639ba42b98cc upstream.

On transmit-hold-register empty, serial8250_tx_chars
should be called only if we don't use DMA.
DMA has its own tx cycle.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/8250/8250_core.c diff | blob | history
Domain: System / Uncategorized;