]> git.karo-electronics.de Git - karo-tx-linux.git/commit
ahci: don't enable port irq before handler is registered
authorMaxime Bizon <mbizon@freebox.fr>
Wed, 16 Mar 2011 13:58:32 +0000 (14:58 +0100)
committerJeff Garzik <jgarzik@pobox.com>
Sun, 24 Apr 2011 15:34:05 +0000 (11:34 -0400)
commit7b3a24c57d2eeda8dba9c205342b12689c4679f9
treef4be496d3c0008c6b601b75616383bb735bc9fd2
parentae01b2493c3bf03c504c32ac4ebb01d528508db3
ahci: don't enable port irq before handler is registered

The ahci_pmp_attach() & ahci_pmp_detach() unmask port irqs, but they
are also called during port initialization, before ahci host irq
handler is registered. On ce4100 platform, this sometimes triggers
"irq 4: nobody cared" message when loading driver.

Fixed this by not touching the register if the port is in frozen
state, and mark all uninitialized port as frozen.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
drivers/ata/libahci.c
drivers/ata/libata-core.c