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ARM: OMAP: Release i2c_adapter after use (Siemens SX1)

PATCH New Jean Delvare 1 participant 1 message Feb 24, 2008

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PATCH 1/1 ARM: OMAP: Release i2c_adapter after use (Siemens SX1)

Each call to i2c_get_adapter() must be followed by a call to i2c_put_adapter() to release the grabbed reference. Otherwise the reference count grows forever and the adapter can never be unregistered.

---
 arch/arm/mach-omap1/board-sx1.c |    2 ++
 1 file changed, 2 insertions(+)
arch/arm/mach-omap1/board-sx1.c +2 -0
@@ -61,6 +61,7 @@ int i2c_write_byte(u8 devaddr, u8 regoff
 	data[0] = regoffset;	/* register num */
 	data[1] = value;		/* register data */
 	err = i2c_transfer(adap, msg, 1);
+	i2c_put_adapter(adap);
 	if (err >= 0)
 		return 0;
 	return err;
@@ -91,6 +92,7 @@ int i2c_read_byte(u8 devaddr, u8 regoffs
 	msg->buf = data;
 	err = i2c_transfer(adap, msg, 1);
 	*value = data[0];
+	i2c_put_adapter(adap);
 
 	if (err >= 0)
 		return 0;
Signature · 6 lines
Jean Delvare

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