From: Troy Mitchell Date: Thu, 25 Sep 2025 02:02:25 +0000 (+0800) Subject: i2c: spacemit: ensure bus release check runs when wait_bus_idle() fails X-Git-Tag: v6.18-rc1~154^2~13 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=41d6f90ef5dc2841bdd09817c63a3d6188473b9b;p=thirdparty%2Flinux.git i2c: spacemit: ensure bus release check runs when wait_bus_idle() fails spacemit_i2c_wait_bus_idle() only returns 0 on success or a negative error code on failure. Since 'ret' can never be positive, the final 'else' branch was unreachable, and spacemit_i2c_check_bus_release() was never called. This commit guarantees we attempt to release the bus whenever waiting for an idle bus fails. Fixes: 5ea558473fa31 ("i2c: spacemit: add support for SpacemiT K1 SoC") Reviewed-by: Aurelien Jarno Signed-off-by: Troy Mitchell Signed-off-by: Wolfram Sang --- diff --git a/drivers/i2c/busses/i2c-k1.c b/drivers/i2c/busses/i2c-k1.c index b68a21fff0b56..ee08811f4087c 100644 --- a/drivers/i2c/busses/i2c-k1.c +++ b/drivers/i2c/busses/i2c-k1.c @@ -476,12 +476,13 @@ static int spacemit_i2c_xfer(struct i2c_adapter *adapt, struct i2c_msg *msgs, in spacemit_i2c_enable(i2c); ret = spacemit_i2c_wait_bus_idle(i2c); - if (!ret) + if (!ret) { ret = spacemit_i2c_xfer_msg(i2c); - else if (ret < 0) - dev_dbg(i2c->dev, "i2c transfer error: %d\n", ret); - else + if (ret < 0) + dev_dbg(i2c->dev, "i2c transfer error: %d\n", ret); + } else { spacemit_i2c_check_bus_release(i2c); + } spacemit_i2c_disable(i2c);