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authorPaolo Bonzini <pbonzini@redhat.com>2014-03-31 18:26:29 +0200
committerMichael S. Tsirkin <mst@redhat.com>2014-05-07 19:14:41 +0300
commit285364e96818c1a5f715fe256557b4a718222bc6 (patch)
treea9779bdc44fa5804d77657d2c4ef29e79b00e9a0 /hw
parentaa93200b88fb1071eaf21bf766711762ed4630e2 (diff)
smbus: allow returning an error from reads
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/i2c/smbus.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/hw/i2c/smbus.c b/hw/i2c/smbus.c
index 3febf3c258..190f08e089 100644
--- a/hw/i2c/smbus.c
+++ b/hw/i2c/smbus.c
@@ -214,7 +214,7 @@ void smbus_quick_command(I2CBus *bus, uint8_t addr, int read)
i2c_end_transfer(bus);
}
-uint8_t smbus_receive_byte(I2CBus *bus, uint8_t addr)
+int smbus_receive_byte(I2CBus *bus, uint8_t addr)
{
uint8_t data;
@@ -232,7 +232,7 @@ void smbus_send_byte(I2CBus *bus, uint8_t addr, uint8_t data)
i2c_end_transfer(bus);
}
-uint8_t smbus_read_byte(I2CBus *bus, uint8_t addr, uint8_t command)
+int smbus_read_byte(I2CBus *bus, uint8_t addr, uint8_t command)
{
uint8_t data;
i2c_start_transfer(bus, addr, 0);
@@ -252,7 +252,7 @@ void smbus_write_byte(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t data)
i2c_end_transfer(bus);
}
-uint16_t smbus_read_word(I2CBus *bus, uint8_t addr, uint8_t command)
+int smbus_read_word(I2CBus *bus, uint8_t addr, uint8_t command)
{
uint16_t data;
i2c_start_transfer(bus, addr, 0);