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authorGeoff Levand <geoffrey.levand@am.sony.com>2008-08-22 14:13:00 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-09-23 13:58:06 -0700
commit83a798207361cc26385187b2e71efa2b5d75de7f (patch)
treeeb2fa06d818abf43b18c9f3ccc7c12acbf62bb3b /Documentation/usb
parentf8834f1febb8f56cdcfeb35485e0cc7a8d547818 (diff)
USB: fix hcd interrupt disabling
Commit de85422b94ddb23c021126815ea49414047c13dc, 'USB: fix interrupt disabling for HCDs with shared interrupt handlers' changed usb_add_hcd() to strip IRQF_DISABLED from irqflags prior to calling request_irq() with the justification that such a removal was necessary for shared interrupts to work properly. Unfortunately, the change in that commit unconditionally removes the IRQF_DISABLED flag, causing problems on platforms that don't use a shared interrupt but require IRQF_DISABLED. This change adds a check for IRQF_SHARED prior to removing the IRQF_DISABLED flag. Fixes the PS3 system startup hang reported with recent Fedora and OpenSUSE kernels. Note that this problem is hidden when CONFIG_LOCKDEP=y (ps3_defconfig), as local_irq_enable_in_hardirq() is defined as a null statement for that config. CC: stable <stable@kernel.org> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Stefan Becker <Stefan.Becker@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/usb')
0 files changed, 0 insertions, 0 deletions