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authorGreg Kroah-Hartman <gregkh@suse.de>2010-02-17 13:57:05 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2010-03-07 20:04:52 -0500
commit8e9394ce2412254ec69fd2a4f3e44a66eade2297 (patch)
tree355f25148b4ce3f5cfebeaf0939d71cb6beaf88b /drivers/pcmcia
parent62e877b893e6350c900d381f353aa62ed48dcc97 (diff)
Driver core: create lock/unlock functions for struct device
In the future, we are going to be changing the lock type for struct device (once we get the lockdep infrastructure properly worked out) To make that changeover easier, and to possibly burry the lock in a different part of struct device, let's create some functions to lock and unlock a device so that no out-of-core code needs to be changed in the future. This patch creates the device_lock/unlock/trylock() functions, and converts all in-tree users to them. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jean Delvare <khali@linux-fr.org> Cc: Dave Young <hidave.darkstar@gmail.com> Cc: Ming Lei <tom.leiming@gmail.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Phil Carmody <ext-phil.2.carmody@nokia.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Cc: Len Brown <len.brown@intel.com> Cc: Magnus Damm <damm@igel.co.jp> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Vegard Nossum <vegard.nossum@gmail.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Alex Chiang <achiang@hp.com> Cc: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrew Patterson <andrew.patterson@hp.com> Cc: Yu Zhao <yu.zhao@intel.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Wolfram Sang <w.sang@pengutronix.de> Cc: CHENG Renquan <rqcheng@smu.edu.sg> Cc: Oliver Neukum <oliver@neukum.org> Cc: Frans Pop <elendil@planet.nl> Cc: David Vrabel <david.vrabel@csr.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pcmcia')
-rw-r--r--drivers/pcmcia/ds.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 0f98be4450b7..ad93ebd7b2a2 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -971,9 +971,9 @@ static int runtime_suspend(struct device *dev)
971{ 971{
972 int rc; 972 int rc;
973 973
974 down(&dev->sem); 974 device_lock(dev);
975 rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND); 975 rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND);
976 up(&dev->sem); 976 device_unlock(dev);
977 return rc; 977 return rc;
978} 978}
979 979
@@ -981,9 +981,9 @@ static int runtime_resume(struct device *dev)
981{ 981{
982 int rc; 982 int rc;
983 983
984 down(&dev->sem); 984 device_lock(dev);
985 rc = pcmcia_dev_resume(dev); 985 rc = pcmcia_dev_resume(dev);
986 up(&dev->sem); 986 device_unlock(dev);
987 return rc; 987 return rc;
988} 988}
989 989