[PATCH 1/4] drm/omap: reorganize locking in mgr_fld_write
Tomi Valkeinen
tomi.valkeinen at ti.com
Mon Feb 12 08:19:19 UTC 2018
Fix sparse warning:
drivers/gpu/drm/omapdrm/dss/dispc.c:387:9: warning: context imbalance in 'mgr_fld_write' - different lock contexts for basic block
Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
---
drivers/gpu/drm/omapdrm/dss/dispc.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index 86d18f2d48ba..679931e108f9 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -384,13 +384,13 @@ static void mgr_fld_write(enum omap_channel channel,
const bool need_lock = rfld.reg == DISPC_CONTROL || rfld.reg == DISPC_CONFIG;
unsigned long flags;
- if (need_lock)
+ if (need_lock) {
spin_lock_irqsave(&dispc.control_lock, flags);
-
- REG_FLD_MOD(rfld.reg, val, rfld.high, rfld.low);
-
- if (need_lock)
+ REG_FLD_MOD(rfld.reg, val, rfld.high, rfld.low);
spin_unlock_irqrestore(&dispc.control_lock, flags);
+ } else {
+ REG_FLD_MOD(rfld.reg, val, rfld.high, rfld.low);
+ }
}
static int dispc_get_num_ovls(void)
--
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