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(parent: 6929ef3) | patch
ata: sata_mv: check for errors when parsing nr-ports from dt
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tue, 29 Nov 2016 11:13:38 +0000 (12:13 +0100)
committerTejun Heo <tj@kernel.org>
Tue, 29 Nov 2016 16:35:06 +0000 (11:35 -0500)
commit5c3ef39738f74a3759918cc1a1ad099504f9d1b7
treea29d2bee4b6726435e743819dc4ef4b04f32d652tree | snapshot (tar.gz zip)
parent6929ef385e09c0065b87fda3e7b872a5070ac783commit | diff
ata: sata_mv: check for errors when parsing nr-ports from dt

If the nr-ports property is missing ata_host_alloc_pinfo is called with
n_ports = 0. This results in host->ports[0] = NULL which later makes
mv_init_host() oops when dereferencing this pointer.

Instead be a bit more cooperative and fail the probing with an error
message.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
drivers/ata/sata_mv.c diff | blob | blame | history