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authorAlan Stern2006-09-18 22:24:28 +0200
committerGreg Kroah-Hartman2006-09-26 06:08:40 +0200
commit81107bf531d2524afbcd61f3b4ad57a71295d591 (patch)
tree8c4f985714432bee996720c2d8e4bcfbe3d70575 /lib/klist.c
parentDriver core: Fix potential deadlock in driver core (diff)
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Driver core: Remove unneeded routines from driver core
This patch (as783) simplifies the driver core slightly by removing four unnecessary _get and _put methods. It is vital that when a driver is removed from its bus's klist of registered drivers, or when a device is removed from a driver's klist of bound devices, that the klist updates complete synchronously. Otherwise the kernel might try binding an unregistered driver to a newly-registered device, or adding a device to the klist for a new driver before it has been removed from the old driver's klist. Since the removals must be synchronous, they don't need to update any reference counts. Hence the _get and _put methods can be dispensed with. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib/klist.c')
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