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Diffstat (limited to 'target/linux/omap24xx/patches-3.1/253-cbus-tahvo-irq-reg-lock.patch')
-rw-r--r--target/linux/omap24xx/patches-3.1/253-cbus-tahvo-irq-reg-lock.patch15
1 files changed, 15 insertions, 0 deletions
diff --git a/target/linux/omap24xx/patches-3.1/253-cbus-tahvo-irq-reg-lock.patch b/target/linux/omap24xx/patches-3.1/253-cbus-tahvo-irq-reg-lock.patch
new file mode 100644
index 0000000000..c27a67c7c9
--- /dev/null
+++ b/target/linux/omap24xx/patches-3.1/253-cbus-tahvo-irq-reg-lock.patch
@@ -0,0 +1,15 @@
+Index: linux-3.1.1/drivers/cbus/tahvo.c
+===================================================================
+--- linux-3.1.1.orig/drivers/cbus/tahvo.c 2011-11-17 18:51:03.708374259 +0100
++++ linux-3.1.1/drivers/cbus/tahvo.c 2011-11-17 18:57:17.739067493 +0100
+@@ -137,8 +137,10 @@ static irqreturn_t tahvo_irq_handler(int
+ u16 id;
+ u16 im;
+
++ mutex_lock(&tahvo->mutex);
+ id = __tahvo_read_reg(tahvo, TAHVO_REG_IDR);
+ im = __tahvo_read_reg(tahvo, TAHVO_REG_IMR);
++ mutex_unlock(&tahvo->mutex);
+ id &= ~im;
+
+ if (!id) {