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OMAP2+: omap_device: bug fix patch for omap_device_idle()/omap_device_shutdown()

Message ID alpine.DEB.2.00.0906072212300.25987@utopia.booyaka.com (mailing list archive)
State New, archived
Delegated to: Paul Walmsley
Headers show

Commit Message

Paul Walmsley June 8, 2009, 4:13 a.m. UTC 
This patch fixes a crash in the _omap_device_deactivate().  It will be
rolled into the next omap_device patch series posting.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/plat-omap/omap_device.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)
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Patch

diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index a992b88..0c54892 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -127,10 +127,12 @@  static int _omap_device_activate(struct omap_device *od, u8 ignore_lat)
 
 	pr_debug("omap_device: %s: activating\n", od->pdev.name);
 
-	while (od->pm_lat_level >= 0) {
+	while (od->pm_lat_level > 0) {
 		struct omap_device_pm_latency *odpl;
 		int act_lat = 0;
 
+		od->pm_lat_level--;
+
 		odpl = od->pm_lats + od->pm_lat_level;
 
 		if (!ignore_lat &&
@@ -155,7 +157,6 @@  static int _omap_device_activate(struct omap_device *od, u8 ignore_lat)
 		     act_lat, odpl->activate_lat);
 
 		od->dev_wakeup_lat -= odpl->activate_lat;
-		od->pm_lat_level--;
 	}
 
 	return 0;
@@ -181,7 +182,7 @@  static int _omap_device_deactivate(struct omap_device *od, u8 ignore_lat)
 
 	pr_debug("omap_device: %s: deactivating\n", od->pdev.name);
 
-	while (od->pm_lat_level < (od->pm_lats_cnt - 1)) {
+	while (od->pm_lat_level < od->pm_lats_cnt) {
 		struct omap_device_pm_latency *odpl;
 		int deact_lat = 0;
 
@@ -454,7 +455,7 @@  int omap_device_enable(struct platform_device *pdev)
 
 	/* Enable everything if we're enabling this device from scratch */
 	if (od->_state == OMAP_DEVICE_STATE_UNKNOWN)
-		od->pm_lat_level = od->pm_lats_cnt - 1;
+		od->pm_lat_level = od->pm_lats_cnt;
 
 	ret = _omap_device_activate(od, IGNORE_WAKEUP_LAT);